Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator. The Holley 12-803BP fuel pressure regulator features 3/8" NPT in/out ports and a 3/8" NPT return port.

Features:
  • Adjustable fuel regulation from 4-1/2 to 9 psi
  • Preset to 7psi
  • 3/8” NPT ports (1 in, 1 out, 1 bypass or return)
  • Used in systems with a return line back to the fuel tank
  • Quieter fuel pump operation
  • Designed only for carburetor use
  • Polished finish
  • Mounting bracket included
  • More From This Category

    AEM Gauge, X-Series, 0-15 PSI, Black Bezel and Black Boost/Fuel Faceplate

    AEM Gauge, X-Series, 0-15 PSI, Black Bezel and Black Boost/Fuel Faceplate

    $373.74

    View
    DiabloSport Intune, Intune3 Plat 2017 Ram 6.4L PCM Swap

    DiabloSport Intune, Intune3 Plat 2017 Ram 6.4L PCM Swap

    $1,045.98

    View
    MSD Rev Limiter, Soft Touch, OEM Ignition, Uses Plug-In Modules, Each

    MSD Rev Limiter, Soft Touch, OEM Ignition, Uses Plug-In Modules, Each

    $353.33

    View
    Scott Drake Classic Frame Rail, Steel, 1964-1968 For Ford Mustang, 4 in. W X 2 7/8 in. H X 29 in. L, Each

    Scott Drake Classic Frame Rail, Steel, 1964-1968 For Ford Mustang, 4 in. W X 2 7/8 in. H X 29 in. L, Each

    $97.50

    View
    Scott Drake Classic Ignition Coil, 1964-1973 For Ford Mustang, Chrome Plated, Each

    Scott Drake Classic Ignition Coil, 1964-1973 For Ford Mustang, Chrome Plated, Each

    $118.49

    View
    Classic Instruments Gauge, Oil Pressure, Short Sweep 2 5/8" Diameter, Grey, Matte-Black

    Classic Instruments Gauge, Oil Pressure, Short Sweep 2 5/8" Diameter, Grey, Matte-Black

    $296.12

    View