I am wondering if I boost a stock Si motor to 7-8 lbs how much fuel am i gonna need? I am currently saving, and learning about all the standalones on the market but until then(money!!!) I will be using a vortech 12:1 fmu. I have a nos 255LPH fuel pump(not sure if its 155lph or 255 got to look at the box). Stock injectors! How much fuel pressure will be needed at 8lbs to be running slightly rich?

I am guessing somewhere near 105-115PSI? Is that about right?

 

Is that nos fuel pump an inline or intank. If its only an intank, your gonna need an inline to keep up with the FMU.

 

in tank 255lph