Which In-Tank Fuel pump to use to feed carbed 383+150 shot @ 6-7 psi
 

I am installing a Super Powershot NOS system on the IROC and I want to know which IN-TANK fuel pump to use to support my carbed 383 AND the NOS system at 6-7 psi.

Right now I have the mallory 4309 regulator and a stock TBI in-tank pump and it supported my 355 AND a 100 shot at 6 psi, but the setup was only making 453 hp to the wheels. Now the 383 is pushing 432 rwhp on motor alone and I want to spray 150 on top of that.

I was thinking of using an 89 turbo trans am pump or an aftermarket 255 in tank pump, but all these are designed for high psi fuel injection. Does that mean that they will easily flow enough for my setup?

Any thoughts?THANKs

Personally, I would plumb 2 seperate fuel systems.

I don't want to run a separate fuel system for the nitrous. Here is the setup:

NOS SuperPowershot
NOS Fuel safety switch
MSD retard contoller
Bottle heater
bottle blanket
NOS 1600 psi in dash gauge

I have ran the same basic setup with a Big Shot 150 and a 750DP using a 255LPH in tank and a Mallory Bypass reg with zero probs.

The bypass reg will keep the fuel pump/fuel cooler