I run a surge tank set-up with a stock tank and a modified factory style pick-up/sending unit. The benefit of this system is that it will run hard even on a road course without introducing any air into the high pressure side of the system even when the tank is down to the last gallon or two.

The low pressure side circulates fuel at near 0 psi from the tank to the surge tank and back into the tank, and the high pressure side circulates fuel from the surge tank through the fuel rails, through the pressure regulator and back into the surge tank. It is very effective especially if you run below half a tank and are doing some spirited driving.