This fuel pressure regulator precisely controls fuel pressure from the fuel pump to the carburetor, protecting the needle and seat assembly from flooding or drivability issues caused by excess pressure. It's fully adjustable and factory pre-set at 2.8 PSI, so there's no guesswork on first install.
Specifications:
- Category: Air and Fuel Delivery
- Product Type: Fuel Pressure Regulator
- Style: Non-Return
- Pressure Range: 1-4 PSI
- Factory Preset: 2.8 PSI
- Inlet Size: 3/8 inch NPT
- Outlet Size: 3/8 inch NPT
- Material: Aluminum
- Finish: Shiny
- Fuel Type: Gasoline
- Part Number: 12-804
Maximum inlet pressure for this regulator is limited to 7 PSI.
FAQ
What pressure range does this regulator adjust?
It's adjustable from 1 to 4 PSI, pre-set at the factory to 2.8 PSI.
What is the maximum inlet pressure allowed?
Inlet pressure is limited to 7 PSI.
What port size does this regulator use?
It has 3/8" NPT inlet and outlet ports.
What is the part number for this regulator?
This Holley two-port fuel pressure regulator is part number 12-804.

