I have the stock fuel pump and a boost-a-pump with 42# injectors. This has worked well for 25k+ miles using the procharger 4" pulley.

Going in now is a '04 ls6 cam, springs, and PR's as well as a 3.85" pulley. Specs in sig.

Am I going to need a real pump finally?

 

You should run out of injector before pump with 42s.

 

go ahead and sell your injectors and make the switch..... Pump and injectors...

 

A 255 pump and some 60s should do you well for a long time

 

Do that^^^

 

I'm sure that would be good for a long while, but for now----Will I be OK?

Guess I may have to wait for the re-tune and see.