Edelbrock Fuel Injection Pressure Regulator 1728 FUEL REGULATOR. EST, MON to FRI. Founded in 1938, Torrance-based Edelbrock, LLC is recognized as one of the nation’s premier designers, manufacturers and distributor of performance replacement parts for the automotive aftermarket. Edelbrock produces their core products in the United States of America using state-of-the-art equipment in their world […]