CNPAPC 12-804 adjustable regulator with gauge for Holley and Edelbrock ensures precise fuel pressure.
CNPAPC regulator kit includes gauge and screws for easy installation.
Durable zinc alloy regulator from CNPAPC for long-lasting performance.
Stable performance regulator helps smooth idle and consistent fuel flow.
OE replacement 12-804 / 12804 compatibility for classic carburetors.
3/8 inch NPT port design fits most carburetors.
Holley and Edelbrock compatible regulator for carbureted engines.
Precise 1–4 psi adjustment enables tuning options.
Complete kit supports straightforward mounting with included screws.
CNPAPC 12-804 adjustable regulator with gauge for Holley and Edelbrock ensures precise fuel pressure.
CNPAPC regulator kit includes gauge and screws for easy installation.
Durable zinc alloy regulator from CNPAPC for long-lasting performance.
Stable performance regulator helps smooth idle and consistent fuel flow.
OE replacement 12-804 / 12804 compatibility for classic carburetors.
3/8 inch NPT port design fits most carburetors.
Holley and Edelbrock compatible regulator for carbureted engines.
Precise 1–4 psi adjustment enables tuning options.
Complete kit supports straightforward mounting with included screws.

CNPAPC 12-804 Adjustable Fuel Pressure Regulator with Gauge — Holley & Edelbrock, 1-4 PSI, 3/8 NPT

Overview The CNPAPC 12-804 Adjustable Fuel Pressure Regulator with Gauge is designed for carbureted engines that use...
Vendor: CNPAPC
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CNPAPC 12-804 adjustable regulator with gauge for Holley and Edelbrock ensures precise fuel pressure.

CNPAPC 12-804 Adjustable Fuel Pressure Regulator with Gauge — Holley & Edelbrock, 1-4 PSI, 3/8 NPT

£48.58
CNPAPC 12-804 adjustable regulator with gauge for Holley and Edelbrock ensures precise fuel pressure.
CNPAPC regulator kit includes gauge and screws for easy installation.
Durable zinc alloy regulator from CNPAPC for long-lasting performance.
Stable performance regulator helps smooth idle and consistent fuel flow.
OE replacement 12-804 / 12804 compatibility for classic carburetors.
3/8 inch NPT port design fits most carburetors.
Holley and Edelbrock compatible regulator for carbureted engines.
Precise 1–4 psi adjustment enables tuning options.
Complete kit supports straightforward mounting with included screws.

CNPAPC 12-804 Adjustable Fuel Pressure Regulator with Gauge — Holley & Edelbrock, 1-4 PSI, 3/8 NPT

£48.58
Description
Description
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Overview

The CNPAPC 12-804 Adjustable Fuel Pressure Regulator with Gauge is designed for carbureted engines that use Holley or Edelbrock carburetors. This regulator sits between the fuel pump and carburetor to offer tunable pressure and a clear gauge readout, helping you monitor and adjust fuel delivery as needed. Built to fit typical carbureted systems, it uses 3/8-inch NPT ports with a 1 in, 2 out configuration, making it a practical addition to many classic and performance builds.

The regulator is anchored by OE-level references 12-804 and 12804, making it a familiar replacement option for projects that aim to preserve original specifications while allowing for on-the-fly tuning. The included gauge provides a quick glance at fuel pressure, enabling informed adjustments during setup or tuning sessions.

What you get

  • Regulator body with adjustable range from 1 to 4 PSI
  • 0–15 PSI gauge for real-time pressure monitoring
  • Three mounting screws for straightforward installation

Key benefits and real-world use

  • Adjustable Pressure Range: Fine-tune fuel pressure to suit different engines and carburetors, potentially supporting stable fuel delivery from pump to carburetor and reducing overflow or rough idling.
  • Complete Kit: Everything needed for setup is included—regulator, gauge, and screws—so you can install with confidence on 3/8" NPT ports (1 in, 2 out).
  • Durable Construction: Made from premium zinc alloy for corrosion resistance and heat tolerance, aiming for long service life in demanding conditions.
  • Stable Performance: Precise fuel flow regulation helps mitigate pressure spikes and valve overload, contributing to smoother idle and more efficient combustion potential.

In real-world scenarios, this regulator can support restoration projects, street builds, and hobbyist engines where a tunable fuel supply aligns with the carburetor setup. Results depend on the full fuel system, so consider this regulator as a flexible adjustment tool rather than a guaranteed upgrade. Always confirm port compatibility and follow installation best practices for your specific engine.

Compatibility and installation notes

OE Replacement: Part numbers 12-804 / 12804. Please double-check the part number before installing.

FAQ

Q: What is included in the kit?

A: The regulator, a 0–15 PSI gauge, and three mounting screws are included.

Q: What ports and compatibility does it support?

A: Designed for 3/8" NPT ports; fits most carbureted systems with Holley or Edelbrock compatibility.

Shipping & Return
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