These new gaskets fit 4150 Series 390-450 CFM Holley 4 barrel D/P carbs with 1-7/16" primary & secondary throttle bores and removable jets in the secondary & one power valve. This carb is a square flange bolt pattern.
Holley 4150 Premium Carb Kit For List 6708-1 D/P-S/B With 1 P/V Plus Vent Valve.
Holley 4150 Premium Carb Kit For 650-750 CFM- Spread Bore With 2 P/V.
Holley 4150 Premium Carb Kit List 6708 & 6709 D/P- S/B With 2 P/V & Vent Valve.
Holley 4150 Premium Carb Kit For 390-450 CFM For V/S With External N/S One P/V.
Holley 4150 Premium Carb Kit For 390-450 CFM D/P With External N/S & 2P/V.
Holley 4150 Premium Carb Kit For 550-600 CFM For V/S & 1 P/V & 3/8 Internal N/S.