Holley 0-76750HB Ultra Double Pumper Carburetor Ultra High Strength And Durability; Ultra Double Pumper Carburetor; 4-Barrel; 750 CFM; Gray Billet Aluminum Metering Block/Base Plate with Gold Hardware; Mechanical Secondary; Model 4150; Electric Choke Ultra Cool Modernized Looks 4 Corner Idle 4 Vacuum Ports Factory Pre-Set Electric Choke