Adjustable Fuel Pressure Regulator With Gauge For Holley And Edelbrock Carburetors, 1 To 4 PSI, 3/8 NPT, 1 In 2 Out, Model 12-804, Built For Stable Fuel Delivery And Easy Tuning For Street And Performance Machines
✔️ 1-4 psi adjustable, 3/8 in NPT gauge, 0.220 in restrictor, pack:1pc
The 12-804 adjustable fuel pressure regulator is a direct-fit upgrade for Holley and Edelbrock carburetors, delivering stable fuel delivery from the pump to the carb. With a 1 in, 2 out flow path and a 3/8 NPT gauge port, it supports precise tuning and dependable performance for street and performance machines.
✅ Direct fit for Holley and Edelbrock carburetors, 1 in / 2 out, 3/8 NPT gauge port (9.5 mm)
✅ Adjustable pressure range 1-4 psi with a precise regulating knob
✅ Liquid-filled gauge for stable, drift-free pressure readings
✅ Durable metal and ABS body withstands high temp and corrosion
✅ Includes 0.220 in (7/32 in) restrictor for tuning
✅ Installation notes: unscrew hex nut, set pressure, reseat to prevent leaks
💡 What is an adjustable fuel pressure regulator and why is it handy for carbureted engines?
Here's a concise guide:
- Increases fuel delivery stability across RPM and load - Enables precise 1-4 psi tuning to match engine needs - Uses a visible gauge and dial knob for easy setup