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Holley Billet Carbureted Fuel Pressure Regulator 12-707

Holley Billet Carbureted Fuel Pressure Regulator 12-707
$512.99 ea
NEWARRIVING SOONEstimated Ship Date 03/26/2024 (If Ordered Today)5 Available from HOLLEY PERFORMANCE PRODUCTS as of 03/02/2024
Model: 3991247
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 12-707 fuel pressure regulator features 1 -8 inlet & 4 -6 outlet ports.
  • Adjustable fuel regulation from 4-1/2 to 9 psi
  • One -8 inlet port and four -6 outlet ports
  • .437" (7/16") restriction
  • Aluminum billet body and top casting cover are hard coat anodized for corrosion resistance
  • Three fuel pressure gauge mounting options (fuel pressure gauge not included)
  • Includes mounting hardware and AN fittings
  • Compatible for use with gasoline and methanol/alcohol
Regulator is compatible with Diesel #1 and Diesel #2.
Installation Notes:
Regulator is compatible with Diesel #1 and Diesel #2.

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Download Name File Size



Color Hard Coat Anodized
Emission Code 5
Fuel System Gasoline
Fuel Type Gasoline, Diesel
Inlet Size 8 AN O-Ring
Material Aluminum
Outlet Size 6 AN O-Ring
Part Type Fuel Pressure Regulator
Pressure Range 4.5-9 PSI
Product Type Fuel Pump
Proposition 65 www.P65Warnings.ca.gov
Style Non-Return
Warranty Limited 90 Day


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Holley Billet Carbureted Fuel Pressure Regulator 12-707:
Classic Nova 2024