305 tpi injectors. Regardless, problematic at best.

305 tpi injectors $219. 1110. 0 Vin F lb9 engine. 7L" added to the "Tuned Port Injection" decal. Fel-Pro Gasket Kit for TPI 305/5. Also, what is the lb'age of the stock ones? 19? With the slight increse in flow from the new heads (Corvette L98's with 1. While the idle speed is fluctuating my voltage drops dramatically. If your still running stock injectors they do not fair well with the current corn gas. when the throttle shaft bores are worn. Aug 8, 2005 · Re: Tpi to tbi conversion help me please Your wiring harness on your car won`t adapt to a TPI, but a company called street and performance makes a piggyback conversion to adapt your existing harness and computer. Product will fit all 1985-1988 305 TPI and 1987-1988 350 TPI engines. Talking about tuning, either plan on buying an aftermarket computer you can tune or getting the equipment to tune it yourself. Find CHEVROLET 5. 7 L98 Corvette, Camaro, Trans am 1986-1992These are the exact replacement for the GM early style MultecNo mods required. Customer: Hello I have a 86 iroc z 305 tpi put a new fuel pump In when I turn the ignition the fuel pump does not prime on the acutal plug were the fuel pump relay plugs in to I guess it has a constant hot wire because if I touch the two wires together it makes my fuel pump run I also put a hot wire into the plug that is under the dash and my fuel pump kicks on so it has a new fuel pumpa new Jul 9, 2003 · Hmmmmnn. These are plugged up and need cleaning and/or rebuilding. FULL BOOSTED RESULTS. Wished I never sold the car. . With that said. and kept the 305 TPI chip. Regardless, problematic at best. Camaro Cold Start Switch, For Cars With Tuned Port Injection (TPI), 1985-1988 Feb 19, 2018 · Q: I have a third-gen Camaro with a 305 Tuned Port Injection (TPI) engine, 700-R4 transmission, and 3. If you were to swap heads that were from a 305 TPI then you'd be just as well off. 79 open rear end. These are FLOW MATCHED SETS OF 8 Southbay Fuel Injectors 19lb Camaro Firebird 305 Tpi Fuel Injectors. That's simply not true Geno. I changed the pump twice Mar 26, 2010 · The 305 I am building has some pretty clean injectors on them and from the cost perspective, I would like to clean them rather than repace them. Jan 6, 2010 · The computer will need a custom chip, at this point you will have two decisions to make whether to keep or change the 305 injectors for 350 as this will effect the chip programming. e. Fully serviced and tested to perform as they would new. Jul 1, 2002 · The TPI manifold was originally designed for 305ci engines with 19 lb/hr fuel injectors operating at 36 psi, and employs a long and narrow runner to enhance bottom and midrange torque. F and while the engine is cranking (Key in the START position). If the car "starts the first time" when cold then there is nothing wrong with the cold start system. What kind of test were you supposed to be doing that would result in wet spark plugs? The 87 IROC is the first year of the 350 TPI, I believe, and it was a "batch fire" system. make sure that what you have is the correct part number. 125 inches shorter than the standard TPI fuel injectors. These cars do funny things when one craps out, like shut 4 of the 8 injectors off. motors need to have the minimum throttle position sensor voltage exactly at 0. engines used a 19. Nov 2, 2008 · I'd look for a bad or shorted injector. Dec 29, 2003 · TPI - Tuned Port Injection discussion and questions. Aug 25, 2010 · My 87 Trans Am GTA originally had the 305 TPI and was stock as far as I know. The downside is that the TPI system limited power higher in the rev range. The difference is that you will need to have the ECU reprogrammed for the mods and probably larger injectors to handle the fuel needs. These injectors have been sitting on the shelf for 5+ years, and are sold as non-working cores. The purple wire at the 9th injector is +12V with Key = CRANK. I am currently working on swapping in a fresh built model year correct 350. 6 days ago · Find CHEVROLET CAMARO IROC-Z 5. We have addressed all fitment issues by designing an adapter that attaches to the bottom of the injector, ensuring they match the stock TPI fuel injectors in o-ring to o-ring length. Show per page. By Frank Twardoch ( ftwardoc@mail. MFI; Lucas, stamped CAV. You will be gutless from around 4,500 RPM and up. View Details. Plus when you get your chip programmed, you can tell the computer you are running 305 injectors on a 350, which will lengthen the pulse width to let more fuel to the engine when TPI Injectors. Add to Dec 26, 2007 · In 1989 the RS option became available and many of the RS's were cloned into IROC's. $25. The whole conversion was previously installed on a 1970 Camaro and is therefore secondhand to us. Jun 30, 2005 · tpi the tpi setup that i have is from a 1988, it is mass air flow, and basically, all i want to do to the tpi is throw it on a 350. Feb 18, 2006 · Agree with BillK & Larger Dave. /Hr. 7/350 1986-1992. I didn't say anything about a 7. Set of 8 Genuine 2nd Gen Bosch 4 hole fuel injectors. Lets put it this way . This kit allows you to remove the cold start injector from your TPI intake. Find many great new & used options and get the best deals for 1989 90 91 92 CAMARO FIREBIRD TPI Tuned Port INJECTION Fuel Rail + Injectors 305 at the best online prices at eBay! Free shipping for many products! <p>Factory fuel injectors out of my 1986 camaro iroc-z. These injectors are engineered to be compatible with a range of fuels, including those oxygenated with MTBE, serving as replacements for the GM-style Multec injectors. 1 mpfi? GB REMANUFACTURING 83211110 Reman Multi Port Fuel Injector Info . 305 injectors will handle most mild setups. 0 305 TPI Fuel Injectors Set of 8 Part # 235 047 Jan 10, 2018 · First available in L69 carbureted form, GM soon introduced the LB9 TPI 305 with Tuned Port Injection. And replaced injectors. Then 10 psi of Boost from an Mar 5, 2004 · What is an injector spacer and do they add power? An injector spacer works the same way a TBI spacer except that it lifts the injector pod up off the TBI unit. PLEASE SPECIFY COLOR WHEN ORDERING! For factory fuel rails only! TPI Regulator Diaphragm Sold Separately Sep 14, 2001 · Hey all. Also, a new fuel pump, typically don’t mess with it on any 305 build but if it fails replace it with a 1996 vortec AC Delco (not cheap aftermarket crap) EP381. 0L V8 FUEL INJECTOR Set Lb9. 4 throttle body. The 350 has flat top pistons, with a cam and geardrive. They are the 19lb injectors for the 305 tpi. 0L/305 Fuel Injectors and get Free Shipping on Orders Over $109 at Summit Racing! Dec 12, 2024 · specialize automobile injector manufacturing company, our injectors features an excellent dynamic flow range and superior atomization. replaced it and idles fine now. These will NOT be functioning without cleaning. Sep 10, 2024 · Any fuel injector not up to our guidelines is tossed. If the engine stays running by jumping the injector banks, you added enough fuel to make it fire, and the system is providing fuel to keep it running. Being that my car is TPI I am going to add an aftermarket base, large tube runners and port match the plenum with a bigger throttle body. They may be fine they are untested 6 are 5235437 Find CHEVROLET CAMARO 5. Includes plug for the LH driver side runner, and for the rear of the fuel rail. Dyno Results-Stock TPI 305, Heads, Cam & Intake Upgrade. And as you said yourself, tpi is only good to 4500 rpms :embarrass anyways so it would make sense to get a cam that would have good low end power because I won't even really have the option to have anything else with high end power because already I'm limited by using tpi. Starts back up but would not idle unless you gave it gas, made it home but had to hold accelerator peddle a little to keep it running, ran fine on the highway home but would not idle at stop lights. I had an 85 Z/28 with a Corvette 350 with OE 305 TPI. 0L 305 SBC LB9. I need some info on carb systems vs. 24 LB Bosch 3 Aug 31, 2005 · A 350 bin has the injector constant set to 22 (for a 350 has 22 pph injectors). Our upgrade injectors are specifically chosen. 5@88mph, TPI/L31 355 ran 13. The heads have been ported out a little bit and all bearings have been replaced in the motor. Go to your auto parts store and ask for injectors for a 305/350/4. Make sure you have the following before you start: A gasket set for the upper runner to plenum, lower runner to manifold, and throttle body to plenum Injectors . I'm pretty sure the car still has the stock 19lb injectors for the 305 and I am buying a set of 22lb Bosch injectors so they are the correct size. 79: $10. Nov 23, 2024 · 85 Camaro IROC Z Z28 w/305 TPI. Jul 25, 2022 · Have a GM Tuned Port Injection (TPI) 305 or 350 just itching for a home in a street rod or truck? FiTech has the swap covered with its Ultimate Retro-Fit SBC TPI Standalone EFI Systems. Suggest an ohm test on each injector, first test cold engine, second test hot engine. Nov 19, 2009 · If it was me I would run the same tbi from the 305 to the 350 to the 4. Bbk Performance 1536 Twin 58mm Throttle Body - 85-88 305350 Tpi. 6 rockers, edelbrock headers and dynomax catback (no cat conv), 3. Oct 27, 2024 · Includes plug for the driver side runner, and for the rear of the fuel rail. 99. 8% positive; Seller's other items Seller's other items; Discover precision-crafted injectors engineered for power, efficiency, and durability. I was told I could have a custom computer chip burned so I could run TPI fuel injection on the 350. Fuel Injector Cleaning and flow testing service. Fuel Pressure was holding steady at about 40 p. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products. 8@99mph on stock 85chip and 32 lb/hr injectors. (305) to Accel's 24 lb. s. Reverse, Drive, 2nd, 1st) my car idle "settles" around 750 on the tach, but then starts to fluctuate around there, moving up to 900(or so) then dips down to about 500 on the tach. May 13, 2006 · The 305 and 350 TPI systems are about the same except for the injectors and the computer tuning. I have posted pages to help those with these systems overcome the limitations of those systems and point out what those limitations are. This car hadn't ran in 3 years so after the nomal repairs it fired right up and ran fine. $14. Apr 29, 2009 · The cold start injection system which consists of the "cold start switch" and "cold start injector" only operates with the engine temperature below 100 deg. 23s, Fairbanks 2400 stall, shift kit & servo, accel ignition, custom burned chipS) 1985-88 Camaro, Firebird; TPI 305/350; Cold Start Injector Delete Kit. Welcome to Harris Performance, this site dealing with the TPI Tune Port Injection system used by GM from 1985 through 1992. Oct 7, 2017 · Re: Which Injectors to get for 305 TPI? I have been considering replacing my injectors this winter as well but am unsure how much adjustment would be necessary. OEM and high-performance fuel injectors, injector parts, and accessories. 0 TPI 1986-1992 features new replacement Delphi fuel injectors, optimized by SouthBay Fuel Injectors. 50. 7 83-92. Sparkplugs in a running engine should never be wet. SouthBay Fuel Injectors 19lb Camaro Firebird 305 TPi fuel injectors | eBay Our adapters are exclusive to SouthBay Fuel Injectors. That is roughly 310-320hp gross hp. portpack. The TPI 350 motor was visually distinguishable from the TPI 305 as the bumper cover decal had "5. Oct 22, 2015 · TPI L98 motors and the 305 TPI and the LT1. The slight change in head design gave it about 5 more hp, and only the 5 speed 305 TPI's came with the bigger cam. cmaro-firebird-5-0-305-tpi-fuel-injectors. This is a continuation of how to install the intake system on a Tuned Port Injection small block 5. I've heard mixed things on the subject, as of now I have a 305 TPI and am loving it but I want more power, after consulting an expert he informed me that sadly my stock TPI would not cut it if I wanted Jan 28, 2025 · Find many great new & used options and get the best deals for For 85-88 Camaro/Firebird TPI 305/350 Cold Start 9th Injector Kit Billet NEW at the best online prices at eBay! Free shipping for many products! Customer: I have a 1988 camaro Iroc Z-28 305 tpi. <p>Factory fuel injectors out of my 1986 camaro iroc-z. Fast forward a few days and I tried to start it again and no fuel pressure. Typically, 305 injectors will handle engines from 283 to 350 CID, and 350 injectors will handle engines from 327 to 400 CID. The system is based on FiTech’s proven, self-learning ECU with Speed Density EFI and wideband air-fuel ratio control to improve the performance, tunability Jun 8, 2012 · 91 TA 305 tpi injector issue? Jump to Latest 1. </p> It is made from high-quality CNC-machined aluminum billet. You wont make enough power with those components to warrant new injectors. So, it all has to be done manually. Camaros and 305's in general. I'd imagine swirl port heads (tbi heads), and a TPI manifold would actually work out well on a truck. The TPI 350 motor was not visually distinguishable from the TPI 305. 4 <p>Factory fuel injectors out of my 1986 camaro iroc-z. Mar 30, 2022 · (Image/Richard Holdener) The TPI 305 combinations, both stock and modified, were tuned with a Holley HP management system. Aug 24, 2011 · Stock the TPI 305 ran 15. 84"'s), should I increase the flow at all Jan 13, 2020 · Cold Start Injector Delete Kit for 1985-1988 Camaro/Firebirds! Kit allows you to remove the cold start injector from your TPI intake. In a GM speed-density EFI system, a large number of variables are used in calculating the injector BPW (VE table, injector constant, air temp, water temp, MAP readings, etc. 94" intakes rather than the stock 1. Can I put 305 injectors on a 350? If your engine is not over 250 horsepower, you can put an S&P adjustable fuel-pressure regulator on it and raise fuel pressure. You should have 24# per hr injectors and your fuel pressure should be regulated to 41-43 PSI. May 22, 2017 · TPI's are batch fire one failing injector effects them all. A 305 runs 19 pph injectors, and therefore would need an injector constant of 19. 9-pound injector, while the 350-cu. The 350 injectors are 22#`s and the 305 one`s are 19#`s. When removing the injectors number 3 and 4 cylinder does not change the engine at all. Has run great untill Satutday when at GOOD GUYS car show sittting in line it died. This helps un-shroud the TBI inlet bores and lets a little more air into the TBI unit. GB REMANUFACTURING 83211110. The system is based on FiTech’s proven, self-learning ECU with Speed Density EFI and wideband air-fuel ratio control to improve the performance, tunability Dec 2, 1999 · When in gear (ex. rating. SKU. Jul 23, 2010 · The mechanical fuel injection 305's were even higher with a 6500-7000rpm peak and made 435-460hp. Oct 3, 2011 · As stated the 305 and 350 TPI is the same, only difference is injectors and I believe the computer. The TBI engine has one large injector squiritng down into the intake manifold. Investigate the Cold Start Injector operation. </p> On stock engine, don’t mess with the injectors and never need more than 350 truck injectors with any TBI compatible 305 build. Check each one with an ohmeter, should be around 16 ohms, no lower than 14. Qty. The 305 is still an engine. Engine ran great. Fitment: 1985 Chevrolet Camaro; 1986 Chevrolet Camaro; 1987 Chevrolet Camaro; 1988 Chevrolet Camaro TPi Fuel Injectors. Feb 19, 2009 · 23. 0L/305 Fuel Injectors and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App. 85 Camaro Firebird 5. 53 volts with the throttle closed. All the factory retainer clips are included. Aug 29, 2010 · ALL 305 TPI engines came from the factory with 19 lb injectors. There is a fuse behind the radio marked CRANK. The Corvettes did not have injectors any larger than the Camaro, as I have people often asking. These should be tested and cleaned before use. I went with the Gen III Bosch 30lb/hr for my L29, but I'm running a bigger cam, headers, and CNP ignition on mine. Mar 7, 2009 · I recently bought a 85 IROC with the 305 TPI. View as Grid List. A few things can be used to disinguish a 350 TPI from a 305 TPI (other than the badges, which are often changed to sell a 305 TPI as a 350 TPI). The 305 TPI equipped with automatic transmission came with 190 hp, while the Manual 305 TPI got a 215 hp (160 kW) rating. Tpi Fuel Rail o ring kit 305, 350, 5. Shop restoration car parts and accessories at Rick's Camaro. FireballXL5 on Aug 12, 2024 · Used set of injectors from an TPI1 engine. 0L & 350/5. , Bosch-Style, 14. The cam specs are 280 duration and 480 lift. 23 rear axle gears. NEW For 85-88 Camaro/Firebird TPI 305/350 Cold Start Injector Delete Kit, Billet. 99 in our huge selection of parts. Add to Cart. They will ship with the south bay injectors package. THESE ARE 100% E 10 compliant and come with a lifetime warranty to the original owner with proof of purchase. Feb 17, 2004 · The 305 TPI is a decent motorthe TPI setup is designed for TQ. Edelbrock TPI baseplate, SLP TPI baseplate, LT1 conversion, HSR, etc. Has low idle miss, but has great top end power. The 19LB Camaro Firebird 5. You can keep the 305 injectors and reprogram the chip to drive them harder to fuel the 350. . Includes new o-rings, filters, and components installed on fuel injectors. 7L Kit allows you to remove the cold start injector from your TPI intake. Besides, if the 305 pukes, you can get a 350 short block and transfer the TPI over with minimal mods. This kit comes as shown in pictures. the throttle closes to different angles each time. 23 Items . Fits: 1985-1992 Corvette 350 1985-1992 Camaro Firebird 305/350. I will be the first to admit that the 305 is not the greatest performance engine due to it small bore and the valve shrouding that is cause by it. Get Parts & Accessories. Set of 305 tpi fuel injectors sold as cores. The 350 injectors won`t work on a 305. TPI's have a cold start fuel enrichment cycle that dumps extra fuel in till it's warm. Mar 19, 2011 · Well there is a tpi vortex intake manifold available so it is possible. applications. It will go from about 14 on the Aug 5, 2008 · So, with that said you take a 91-92 TPI 305, put a good set of heads on it (Dart or ported 113 casting aluminum Vette heads), a new intake (i. It was standard, and the only available option on 350's for the Camaro. Includes plug for the driver side runner, and for the rear of the fuel rail. 42lb/440cc TPI BOSCH INJECTORS CHEVY CORVETTE CAMARO FIREBIRD 5. Stock an L31 is rated at 255 sae net hp@ 4600rpm, and 330 sae net lb/ft torque at 2800rpm. Set of 305 tpi fuel injectors in great working condition. Ram air TPI on 1988 305. it never knows exactly when your foot is really off the throttle pedal. Mar 12, 2024 · 85-92 Tpi CAMARO FIREBIRD TRANS AM 305cu 5. This makes the 305-cu. Sort By. Flow Calculator. 7L Jun 5, 2023 · This guide is intended for those of you building a 305 TBI third gen Chevy Camaro or Pontiac Firebird, though many of these parts and mods will apply to anyone with a GM TBI unit, TPI system, small cap distributor, or a 305cu/ 5L engine. Add to Wish List Aug 25, 2002 · There was a recent thread that considerably dogged the lack of performance of the 305 TPI equipped 3rd gen. 1988 - 1988 Chevrolet Camaro Base Great deals on new and rebuilt high performance fuel injectors at Fuel Injector Connection from brands including Bosch, Siemens, Lucas, and Denso. The problem is somewhere May 29, 2002 · The exterior differed in appearance only by `5. 305's came with 19lb injectors and 350's with 22lb. All of the components match up with about a 1991 Camaro 5. 9-pound. Lots of posts about needing to make PROM changes with the Bosch Injectors. 0L 305 Chevy in a 3rd Gen Camaro. A wide range of hand tools to The worst piece on the whole TPI system is the cold start injector or referred to as the 9th injector. the 350 TPIs put out as much torque as the LT1s and almost as much as the LS1s. $409. These are Brand New Delphi fuel injectors for The TPI 5. Torque gets a heavy, full frame truck up and moving. Fazt Toyz Garage (26436) 99. 85-92 Tpi CAMARO FIREBIRD TRANS AM 305cu 5. 3 liter for the same vehicle with the different engines and I bet they sell you the same injectors for all three engines. Order Camaro Cold Start Switch, For Cars With Tuned Port Injection (TPI), 1985-1988 for $295. Highly modified engines with modified TPI May 6, 2007 · Third Generation Pontiac Firebird (1982 - 1992) Product Name: Fuel Injector Plate Condition: Brand New Fitment Type: Performance/Custom Kit allows you to remove the cold start injector from your TPI intake. southbayfuelinjectors. In stock. Chevrolet Applications. TPi Fuel Injectors; TPi Fuel Injectors. 0L/305 Fuel Injectors and get Free Shipping on Orders Over $109 at Summit Racing! Fuel Injector, TFX™, 24 Lbs. 7 83-92 . 9K views 4 replies 5 participants last post by Jaysz28 Jun 11, 2012 Feb 10, 2023 · Good afternoon folks, I'm reaching out for help regarding the fuel injectors on my 1988 IROC-Z with a 305 V8, I decided to replace the original Rochester Product injectors after testing the fuel pressure and noticing that it would drop around 22 psi after about 15-18 minutes with both the feed and return lines clamped off TPI Injectors. The transmission is a Turbo 350, with a 2. Add to Jan 4, 1999 · '90 IROC TPI - Engine would idle, but not pull the car. These are factory GM 305 TPI injectors, 5-235-047. 3. 0 D3 Camaro Firebird 305 TPI . com ) Changing injectors on your TPI motor is not a difficult project, just a bit time consuming. High-Performance fuel injectors from Fuel Injector Connection for L98 Engines on Corvettes, Camaros and Firebirds (305) 5. 00 + Sold in packs of 1 x 1: Have a GM Tuned Port Injection (TPI) 305 or 350 just itching for a home in a street rod or truck? FiTech has the swap covered with its Ultimate Retro-Fit SBC TPI Standalone EFI Systems. Jegs TBI fuel injector spacer $20 Aug 25, 2007 · I ran pretty much the same set-up in my old '86 Z28 (world 305 torquer heads, ported intake and runners, 24# injectors, Isky 270Mega cam w/ 1. The engine was removed by the previous owner in 2009 from a Corvette, rebuilt, and installed in my Plymouth using an aftermarket ECU This ensures that the fuel injector is prepared and ready to be installed without the need for extra components. in. Removed from a 1992 trans am with 58k miles 5 are 17086543 3 are 17102119 Sold as is no returns All sales are final Jul 16, 2005 · A TPI engine will respond to the same mods as anything else. (Image/Richard Holdener) The factory Tuned-Port Injection featured long runners to help promote torque production. html The factory injectors are ~19lb/hr. It should also apply to Mar 22, 2011 · I have a 1986 305 TPI from an 86 Camaro in my truck. Set Descending Fel-Pro Gasket Kit for TPI 305/5. TPI assemblies ideal for 283-, 307- and 327-cu. Feb 10, 2010 · Our 19lb Bosch D3 Camaro 5. EFI systems for small block chevy's (350-383). All injectors are tested with the professional ASNU Classic Digital unit, which guarantees the quality of the products. 0L - CAMARO & FIREBIRD NEW DELPHI 22 SouthBay Fuel Injectors 19lb Camaro Firebird 305 TPi fuel injectors. 19lb 5. Ohms should read 14 to 16 cold or hot. Plugs are firing on both cylinders. Jul 13, 2021 · https://www. this confuses the computer. This works but shortens injector life. Available in Black, Red Anodize or Bright Dip Clear Anodize. Flow sensor measures the actual flow of air into the engine at all times, each TPI (305 or 350) will cover a range of engine sizes satisfactorily. engines used a 21. Shop Marine Injectors. ), a CAI, headers (LT or mid-length depending on which intake you use), underdrive pulleys, AC delete, cam and lifters, 1. 6 roller May 2, 2001 · i dont know on tpi v8's but on my v6 it used to idle around 3000 rpms come to find out my idle air control valve was stuck shut. These are intended to be used on a stock or mild TPI engine. 85 Camaro Firebird TPI Set 8 305 FUEL INJECTORS Trans AM 88 86 92 0280150222 #2. Dyno Test-Old School, Tune Port 5. Removed intake and replaced all gaskets from intake manifold thru throttle body, incuding new o-rings in injectors. Sep 6, 2005 · here's the deal, it's not TBI that's bad, it's the crappy swirl port heads that was put on all the TBI engines. I plan to buy a 350 crate engine that has been dyno’d at 350 horsepower and 389 foot-pounds of torque with a carburetor. 0/305 TPI Fuel Injectors are . Add to Wish List Add to Compare. Good for engines rated at 230-350 HP. It is not ECM controlled. Sure, they offered the L98 350 in the Corvette (and Camaro with an automatic), but the stick May 11, 2018 · Hello Folks, I have a Chevy 350 TPI engine (early 1986, cast iron heads) in my 1947 Plymouth. Will fit all 85-88 305 TPI and 87-88 350 TPI engines. They can be found on ebay and are also sold by Jegs and summit. The intake plenum will say Tuned Port Injection right on it. Feb 7, 2025 · 19lb 1985-1991 Chevrolet Camaro, Firebird 305 TPi . ). 416 305 heads Lift/intake These injectors flow 21 lbs/hr and are an excellent choice for replacing the injectors in your These injectors flow 21 lbs/hr and are an excellent choice for replacing the injectors in your 305 or 350 TPI engine. 85 Trans Am w/305 TPI. </p> 01-14-05 03:47 PM - Post# 600827 what's the lbs/hr rating of fuel injectors from an 86 305 TPI? also does anyone know the same for a 90 3. It can also be determined by checking the VIN (8th character, F=305, 8=350). i. Discovered vacuum leaks around intake manifold. About 6 months ago I installed AGM TPI conversion on to the 305 in my buddies 85 Monte Carlo SS. The problem with the tuned port manifolds that come from GM is that they flow very poorly. SouthBay Fuel Injectors (2090) 100% positive; Fuel Injector-Common Rail Injector(New) Bosch 0445120027; Find CHEVROLET CAMARO IROC-Z Fuel Injectors and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Dec 26, 2004 · Pulse width does change however injectors still have lb. Sep 23, 2018 · And while we are on the topic of injectors, we should mention that the 305-cu. TPI = Tuned Port Injection. 7 Tuned Port Injection' badges rather than `Tuned Port Injection' badges. it screws into the front of the manifold and controls the amount of vacuum that goes through a main line using a pintle thats screws in or out. ALL 350 TPI engines came from the factory with 22 lb injectors. if you are using stock manifold and runners, the 305 injectors will be okay. I changed injectors from 19 lb. yxcfw zywo ctdx orrg lyretlp xib mrx geks wcvb fydkjkq qwxfbsa gdtl aoybh ogkpvm vxff