I bought this firebird forumla with a new engine and a rebuild trans the old owner said that it was a 305 car but it had a 350 put in it now ive heard that the 305 and the 350 cars had different injectors and different fuel pressures as well im new to the fuel injection im 18 and i was wondering how i could tell what the injectors are like 19s or 22s is what i was told would come on them?

 

The 305 should have the 19lb, and the 350 the 22lb injectors. Both are flowed at 43.5psi. If you are unsure of what is in the engine, try to get the part number off of the injector i can tell you what size they are.