Description
Precise fuel pressure control is fundamental to carburetor and fuel system tuning—and the Holley 12-704 delivers adjustable regulation across the 4.5–9 psi range that most naturally aspirated and moderately boosted engines demand. Whether you’re running gasoline, E85, or methanol, this in-line regulator maintains consistent fuel delivery under varying load conditions, eliminating lean-out hesitation and improving throttle response. The polished aluminum construction and included fittings make this a straightforward bolt-on solution for street, strip, and shop applications.
- Pressure range: 4.5–9 psi
- In-line configuration
- 1/2″ NPT inlet
- 1/2″ NPT outlet
- Billet aluminum body
- Polished finish
- Fittings included
- E85/gasoline/methanol compatible
- Sold individually
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