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. List #'s 1748-A^ >, 1748-1A^ >, 1957-A^ >, 1957-1A^ >, 1958-A^ >, 1958-1A^ >.
Holley Premium 4150 Carb Kit For 450 CFM For V/S & 1 P/V & 3/8 Internal N/S.
Holley Premium 4150 Carb Kit For 550-600 CFM For V/S - 1 P/V & 3/8 Internal N/S.
Holley Premium 4150 Carb Kit For 390-450 CFM With V/S, External N/S & 1 PV.
Holley Premium 4150 Carb Kit For 390-450 CFM With V/S, External N/S & 2 PV.
Holley Truck Avenger Premium 4150 Carb Kit With Off Road N & S Plus V/S.
Holley Premium 4150 HP & Ultra HP Carb Kit For 650-800 CFM For D/P With 2 P/V.
