Holley 1973 1987 GM C K Series Muscle Truck EFI Fuel Pump Module 12 308 spark plugs 7 V8 1983 1985 93356 FBHB 7 V8 1983 1985 GMC C3500 Base 454 7 ) 43 Substrate Material Ceramic Air Tube Adaptable No Converter Quantity 2 Inlet Attachment Bolt On Finish Stainless Steel Material Stainless Steel Series OEM Grade Subtitle Federal EPA Compliant Title OEM Grade Direct Fit Type Direct Fit Mounting Hardware Included Yes 2L 8 1985 1986 Chevrolet C10 Custom 262 4 This in tank fuel pump module is a high pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower A pre calibrated fuel level sending unit designed to work with the factory fuel gauge for this application is included This module also features a HydraMat filter which has a unique internal reservoir that keeps fuel available at the pick up and also provides protection from contaminates This pump module is compatible with 1973 1986 fuel tanks that do not have the fuel injection baffles (GM11B style)