Genuine Holley Power Valve Assembly - 4.5 [25-45QFT]

Geniune Holley 4.5 Power Valve Assembly

These Quick Fuel FOUR DOOR power valves feature an exclusive in-house design that has become the preference of professional race teams in virtually every circuit where carburetors are used. They have a greater flow capacity, a quicker response rate, and tighter limit bands that allow engine builders to precisely tune the power enrichment phase of their calibration. All Quick Fuel FOUR DOOR power valves are hand-tested and set to the stamped value. Their thicker molded diaphragm adds increased protection against backfire-induced rupture.

- Direct replacement with no modifications necessary

- FOUR DOOR Quick Flow Technology (QFT)

- Sold individually

- Genuine Holley quality parts