I have a built 440 with 175 hp shot of nitrous and I need a reliable, somewhat quiet, performance electric fuel pump that will maintain 7 psi. I have tried two different Mallory Comp 140 pumps and two different Carter 4106's. The Mallory's are not reliable and and the Carter's advertise a lot of free flow gpm's but I'm only getting 3 psi at the carburetor. I need to feed over 650 hp including the nitrous. Let me know what you are using please!
