To supply the carburetor and the Sportsman Fogger™System in carbureted applications, use a fuel pump designed to operate between 5 and 10 psi with a flow rate of 0.1 gallons per hour per horsepower at 6 psi. Fuel injected applications will require a fuel pump that flows at least 0.1 gallons per hour at system pressure. For example at 42 psi flowing, a motor that makes 450 hp while the nitrous system is activated will require at least 45 g.p.h. at 42 psi flowing, and going down the track.