Why the sump? That's ok for a dedicated drag car if the sump is properly placed and plumbed correctly, but for spirited street or road course driving; it's less than ideal.

If you are trying to keep cost down, add a return line to your sending unit, plumb a small lift/pusher pump just outside the tank to a small surge tank, and plumb it on up to your motor.

A simple surge tank system will deliver air free fuel down to the last gallon and out perform a sump set-up every time, especially if you run a Holly Hydra Mat in the tank.