Description
Fuel pressure inconsistency can kill performance and reliability—whether you’re tuning a carbureted engine or running a classic fuel system without electronic controls. The Holley 12-881 by-pass style regulator maintains precise fuel delivery across your engine’s operating range, preventing lean-out conditions and carburetor flooding. With adjustable pressure between 4.5–9 psi and die-cast aluminum construction, this is a straightforward solution for racers and enthusiasts who demand stable, repeatable fuel delivery.
- By-pass style regulator
- Pressure range: 4.5–9 psi
- Die-cast aluminum body
- Chrome finish
- 3/8″ NPT inlet
- 3/8″ NPT outlet
- 3/8″ NPT return line
- 1/8″ NPT gauge port
- In-line installation
- Gasoline fuel only
- Sold individually
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