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 12-704 fuel pressure regulator features 1/2" NPT in/out ports.
*** 1 1/2 NPT to AN -8 and 2 1/2 NPT to AN -6 For AN style fittings included
Features:
Adjustable fuel regulation from 4-1/2 to 9 psi
One 1/2" NPT inlet and two 1/2" NPT outlet ports
.437" (7/16") restriction
Includes mounting hardware and an style fittings
Alcohol compatible
Specs
Brand
Holley
Color
Shiny
Emission Code
5
Fuel System
Gasoline
Fuel Type
Diesel
Gasoline
Inlet Size
1/2 inch NPT
Material
Aluminum
Outlet Size
1/2 inch NPT
Pressure Range
4.5-9 PSI
Product Type
Fuel Pressure Regulator
Style
Non-Return
Warranty
Limited 90 Day
Part Number
12-704
Emissions
5
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
