The Holley 37-1544 is a Fast Kit for rebuilding Model 4150 four-barrel carburetors, ideal for a quick refresh of a 650 or 750 CFM carburetor. It bundles the most commonly replaced service parts -- gaskets, O-rings, accelerator pump diaphragms, needle and seat, and power valves -- with step-by-step instructions and a tuning guide, and the package doubles as a parts tray.

Holley 37-1544 Kit Contents:

• Fast Kit rebuild kit for Model 4150 carburetors
• Suited to 650 and 750 CFM four-barrels
• Includes gaskets, diaphragms, needle and seat, and power valves
• Includes instructions and tuning guide
• Sold as a kit