This pump may look similar to others on the outside, but the internal components of the ProCam fuel pump have been re-engineered to reduce leaks and maintain pressure. It is completely reworked to increase flow, and machined with 1/2" inlet and outlet to get more fuel to the engine faster. Maintains more constant pressure at high rpms. Blueprinted for longevity and quality. Re-engineered to reduce leaks and maintain pressure Completely reworked to increase flow, and machined with 1/2" inlet and outlet to get more fuel to the engine faster Small Block Chevy applications rated up to 1200 HP on gas; up to 600 HP on alcohol or E85 6 valve, 130 GPH Use of a regulator is recommended for 15 psi fuel pumps