i have reason to believe my injectors are due for replacing. i would like to upgrade and need some suggestions:
'89 iroc 305 tpi automatic: i heard the bosch type 3 24lb are good for a 350 and i can use them on a 305 with adjusted fuel pressure. anyone know about this?? milage/power etc... and any other changes i may have to make going larger than 19lb?? otherwise any suggestions??

 

Stay away from the 24lb/hr injectors...too much for your stock 305. Search for the correct ones I've had (but others haven't) had good luck with Accels...you need/want 19's to keep from fiddling with stuff and keep the ECM happy

 

I put a set of ford bosch 19# in my car, and they're working great. It's slightly rich at WOT, but that can be fixed by lowering the fuel pressure, or with a tune. I chose them because of the price, I only gave $65 for them off ebay, freshly cleaned. Try searching ebay for 'ford 19 injectors', you'll get a ton of results. Also, the type 3 that you're referring to is the nozzle design. Mine are design 2's, but still give a better spray pattern than the stock ones.

 

IF your 305 has DUAL CATS, you need 21 lb injectors.
no matter what any one says !!!!
and ALL 89 up TPI cars got 21 lb from the factory.


This guy knows too:
http://www.scotthansen.net/customerinfo.html

 

the 1989 TPI got 19lbs/hr injectors, and not 21lbs...
all 305 got 19lbs and all 350 got 22lbs injectors..