Mallory Fuel Pressure Regulators accurately, reliably maintain stable fuel pressure from 4 to 12 PSI under even the most demanding conditions and eliminate carburetor flooding with high-pressure fuel pumps. Developed for use with Mallory electric fuel pumps on carbureted gasoline applications, these durable, rebuildable regulators are CNC-machined from billet aluminum and come complete with a mounting bracket for a hassle-free installation.