I use a simple Edelbrock 4-7 to feed my dual quads... I use the Summit brand fuel pump that is actually a holly renamed and the regulator that it comes with still says Holly on it... It's loud as hell and that's why I stopped using it for my regular carburetors a long time ago. When I put my nitrous on I finally put it back into use with the regulator for the nitrous side... Seeing as how I've never used the nitrous except for just seeing if it works it hardly ever comes on. And when you're ready to go for a nitrous run it's probably nice to hear it anyways...