Fuel Pressure Regulator Carburetor Chrome Fit Holley 12-803 2 Port 4 1/2 to9 PSI

Fuel Pressure Regulator Carburetor for Holley 12-803

This chrome fuel pressure regulator is a two-port unit for Holley 12-803 applications, adjusting fuel delivery from 4 1/2 to 9 PSI for consistent carburetor performance.

Overview

This chrome fuel pressure regulator is a two-port unit built for Holley 12-803 applications. It controls fuel pressure delivered to the carburetor, adjustable from 4 1/2 to 9 PSI, so the engine receives a steady, correct feed. It suits carbureted builds where fuel pressure needs dialing in for reliable running.

Built For Performance

• Two-port design for straightforward fuel line plumbing
• Adjustable output from 4 1/2 to 9 PSI
• Chrome finish resists corrosion in engine bay conditions
• Referenced to Holley 12-803 for fitment guidance
• Compact body for easy mounting near the carburetor

On-The-Job Use

• Setting fuel pressure on carbureted street builds
• Tuning fuel delivery after a carburetor swap
• Replacing a tired or leaking regulator in a fuel line
• Supporting consistent fuel feed during hard acceleration

Specs At A Glance

Good To Know

Q: Is this an original Holley part? A: This is a replacement regulator referenced to Holley 12-803 fitment. It is not an original brand product.

Q: Do I need a gauge to set it? A: A fuel pressure gauge helps you set the 4 1/2 to 9 PSI range accurately. Check pressure at the carburetor inlet after installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.