Holley 4150 Carb Rebuilder Kit For 450 CFM For V/S & 2 P/V & 3/8 Internal N/S.

Holley Rebuilder Carb Rebuild Kit For 390-450 CFM Vacuum Secondary With Two Power Valves & Internal Needle & Seat. This Rebuilder Kit Is Ethanol Tolerant. These new gaskets fit 4150 Series 390-450 CFM Holley 4 barrel carbs with vacuum secondary, 1-7/16" throttle bores and removable jets in the secondary.