MikeD.

Currently have a 2006 GMC Sierra 4.8. I want to do a mild turbo build. Shooting for 400ish rwhp. Most likely going to run on3 kit. As far as fuel goes, can I get away with the stock pump, and upgraded injectors? Trying to make this as simple as possible, although do want reliable as its a daily driver. With 400hp in mind, what kinda PSI am I looking at? Thanks guys.

nossty1

iTrader: (3)

I am not super familiar with the 4.8 but I would think youll need 9-10psi. Go ahead and upgrade the fuel pump. Its not to pricey and will be worth it when you want 15psi in the future. Good luck with the build.

Jeff