6 to 8 Required per 4BBL carb. 5 required for 2bbl carbs. These are original Holley base plate screws.
3310 / 80508 Carburetor Throttle Base Plate Vacuum Secondary 750 780 Fits Holley
650 CFM 4150 Double Pumper Carburetor Throttle Base Plate 4 Corner Fits: Holley
Genuine Holley 112-116 650-800 CFM Double Pump Replacement Throttle Base Plate
Fits Holley 650 750 4150 Double Pumper Carburetor Throttle Base Plate 4 Corner
4150 Double Pumper Carburetor Throttle Base Plate 4 Corner Fits: Holley 650 800
