i have a 94 z28 with stock heads/cam - i have a bunch of boltons and a s-trim blower with 8psi and maybe little bit more with a custom tube i'm making to replace the dryer hose- now are my 42lb injectors to much for my setup? ion is having a hard time setting the car up so it won't run rich.

 

Unless they're 95 lb/hr, they're not too much.

 

car is running way to rich with the 42lb injectors- do i need a fuel pressure regulator?

 

Did you have the computer tuned for the larger injectors? There is a "Injector Constant" in the PCM where the injector size is stored and it uses it in its fueling calcs. The stock value is 24.896, if it hasn't been raised then the PCM will command a pulse width that is too long for the larger injectors, hence the rich condition.

-Tony

 

Ion - madz28 fixed the constant on the injectors but now the car still takes awhile to start and when it does it will run for two mins then die? i pulled number one plug out and it was dry except a tiny bit of something on it. didn't smell like fuel.