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12-880 Billet Adjustable Regulator
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-12-880

12-880 Billet Adjustable Regulator

$20795
1 left in stock
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EFI/Carbureted Adjustable Regulators
    Billet Adjustable Regulator
  • EFI/Carbureted Applications
  • By-Pass Return Style
  • Adjustable 4-15 PSI or 16-65 PSI
  • -6AN Ports

    Holley 12-880 Billet Adjustable Regulator Features:

  • Adjustable from 4-15 psi or 16-65 psi for precise fuel pressure adjustments
  • Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
  • Used in systems with a return line back to the tank
  • (1) 6AN O-ring Inlet; (1) 6AN O-ring Outlet; and (1) 6AN O-ring
  • Includes fitting for manifold reference
  • Includes an 1/8 NPT gauge port
  • Boost Reference - 1:1
  • For use with gas, diesel and E85 applications

    Note: The regulator has a PSI range of 4-15 PSI. It also includes a second spring that can be installed for the 16-65 PSI range. Determine approximate fuel pressure your system will require. If your fuel pressure requirement is between 4 and 15 psi, the factory installed regulator spring is the proper spring. If your fuel pressure requirement is between 16 and 65 psi, insure the pressure adjustment set screw is backed out all the way, remove the 4 cover screws and cover, remove the factory installed spring, replace it with the high pressure spring, and reassemble the regulator.


    • Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    Precision-Built Fuel Pressure Regulators For EFI and Carburetors

    Holley Billet Fuel Pressure Regulators are available in a variety of configurations and engineered to provide smooth and stable fuel pressure delivery under any conditions from idle to full throttle. Each precision-machined, 6061-T6 billet aluminum regulator features an anodized body and top for corrosion resistance and durable performance.

Part TypeFuel Pressure Regulator
Product LineHolley Billet Fuel Pressure Regulators
BrandHOLLEY
Package Height3.0
Package Width4.7
Package Length5.3
Weight1.47 PG
Part CategoryPerformance Parts
Regulator FinishBlack/Clear anodized
Outlet Size-6 AN O-ring
Inlet Size-6 AN O-ring
Boost/Vacuum Rise Ratio1:01
Regulator MaterialBillet aluminum
Outlet QuantityOne
QuantitySold individually
Boost/Vacuum Reference PortYes
RebuildableYes
Mounting Bracket IncludedYes
Gauge PortYes
Return Fitting Size-6 AN O-ring
Regulator LocationInline
Fittings IncludedNo
Inlet QuantityOne
Pressure Range (Psi)4-65
Part FitmentUniversal
Regulator StyleReturn
Vendor Part Number12-880
Package Qty1
Package TypeEA
No Questions
No Reviews
Please click here to download the instructions PDF file

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Some parts are not legal for use in California or other states with similar laws / regulations
p65 warning
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