are there better injectors available for a stock TBI? If so will any difference in performance be noticed after installing them?

 

i dont know as much about this subject as a lot of the other guys go, but here is what i have learned...

the GM injectors are about the best quality you can get. they can handle very high fuel pressures without breaking a sweat. you shouldn't need anything better than these.

the only reason that you shoudl worry about changing them is to go to different flow rates. there are many available. if you have an engine that needs these higher flow injectors, you will definitely benefit from them. the stock 305 injectors are pretty weak, so any substantial ods to air flow (intake, exhaust, cam, heads, etc.) will require a larger injector.

you can get injectors out of almost anything that GM made with TBI...trucks, caprics, caprice cop cars, 454 SS trucks, etc.

another thing to play with is fuel pressure. you can make your throttle body adjustable by doing the ultimate TBI mods, and play with that. that will compensate for some mods, but nothing huge.

hope this heps...

-brian