【COMPATIBILITY】: This upgraded 12-804 adjustable fuel pressure regulator offers a direct fit for Holley and Edelbrock carburetors. Easily fine-tune and stabilize your fuel delivery within the optimal 1 to 4 PSI complemented by a 0.220-inch (7/32") restrictor orifice 【FEATURES】: The fuel regulator has a 3/8-inch NPT gauge port (1 in, 2 out) and uses a liquid-filled gauge for easy monitoring and adjustment of engine fuel pressure to meet your vehicle needs 【FUNCTION】: Designed to precisely control the fuel pressure from the fuel pump to the carburetor. The fuel pressure regulator is equipped with a regulating knob and an internal pressure-stabilizing structure. Users can flexibly adjust the supply pressure according to their needs 【MATERIAL】: Mainly made of durable metal and ABS, resistant to high temperature, high pressure, corrosion, can withstand harsh engine environments, and is not easy to rust or malfunction 【INSTALLATION NOTES】: During installation, please unscrew the hexagon socket nut. After confirming that the pressure can be adjusted, screw the nut back to an appropriate position. If the hexagon socket nut is screwed too far in, it may make pressure adjustment impossible or cause oil leakage

12-804 Upgrade Adjustable Fuel Pressure Regulator, w/ Gauge

1-4 PSI, 3/8 in NPT
No Return, Inline

Replacement for Holley & Edelbrock carburetors

Application:
 
Fit for Holley and Edelbrock carburetors.

Reference Part Number:
12-804.

Specification:
Function: Adjust fuel injection volume appropriately to keep the stable pressure in the fuel system, saving fuel consumption.
Adjustment Range: Easily adjust fuel pressure from 1 to 4 PSI. 0.220in (7/32in) restriction.
Features: The fuel regulator has a 3/8-inch NPT gauge port (1 in, 2 out) and uses a liquid-filled gauge for easy monitoring and adjustment of engine fuel pressure to meet your vehicle needs.
Material: Mainly made of durable metal and ABS, resistant to high temperature, high pressure, corrosion, can withstand harsh engine environments, and is not easy to rust or malfunction.
Installation Notes: During installation, please unscrew the hexagon socket nut. After confirming that the pressure can be adjusted, screw the nut back to an appropriate position. If the hexagon socket nut is screwed too far in, it may make pressure adjustment impossible or cause oil leakage.