I've been running the Holley red street electric pump for over 3 yrs on my 250 with a 500 Edelbrock carb. Volume and pressure are compatable so no regulator is needed. Amp draw is light so no relay is needed. I ran 14 gauge wire back to the pump from an oil press switch and soldered on a 2 wire weather pak plug on the Holly suplied pump wires to keep things clean since the pump is mounted on the chassis in front of the gas tank. Except for the noise that pump is great for the street. A multi speaker sound system of at least 160 watts takes care of the pump noise. Opne headers will do it too.
