HOLLEY

HOLLEY

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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 at 2.8 PSI so there is no guesswork when first installing the regulator. The Holley 12-804 fuel pressure regulator features 3/8" NPT in/out ports.

  • Features:
  • Adjustable fuel regulation from 1 to 4 psi
  • .220" (7/32") restriction
  • 3/8" NPT ports ( 1 in, 2 out)
  • Chrome finish
  • Mounting bracket included
  • Pre-set at 2.8 PSI

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 12-803 fuel pressure regulator features 3/8" NPT in/out ports.

  • Features:
  • Adjustable fuel regulation from 4-1/2 to 9 psi
  • .220" (7/32") restriction
  • 3/8" NPT ports ( 1 in, 2 out)
  • Chrome finish
  • Mounting bracket included
  • Features:
  • Adjustable from 4.5-9 psi for precise fuel pressure adjustments
  • Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
  • Used in systems with a return line back to tank
  • Use with electric pumps only
  • (1) -10 an o-ring inlet, (1) -10 an o-ring outlet, (1) -8 an o-ring return
  • 1/8" NPT gauge port
  • Designed for use with the Holley?? Dominator??? in-line fuel pumps or other high pressure pumps where return line is needed
  • Mounting bracket included
  • Street/Strip Carbureted Applications??
  • Two Port
  • Adjustable from 4.5 to 9 PSI

Holley?? Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley??. They are precision machined from 6061-T6 billet aluminum for strength and durability. They feature a black bright dip anodized body and a clear bright dip anodized top for corrosion resistance and good looks. The Holley 12-845 fuel pressure regulator features (1) -8 AN O-ring inlet, (1) -8 AN O-ring outlet, (1) -6 AN O-ring return.

  • Street/Strip EFI Applications??
  • Fits 1985-92 5.0/5.7L TPI Camaro/Firebird
  • Adjustable from 35 to 65 PSI

Holley fuel injection pressure regulators are designed to provide the correct fuel pressure for any high performance fuel injected vehicle. Regulators for dedicated applications are offered in various colors. These each feature a range of adjustability from 35-65 PSI. They are made to bolt in the stock location, so installation is a snap!