This is a USED Holley 500 CFM Carb. It is a holley 4412-1 The date 1581. It will probably need a rebuild kit.
Holley 4412 500 CFM 3272 IMCA UMP WISSOTA LMS MUD Truck Rat Rod NHRA IHRA K&N
Holley 4412 500 CFM IMCA UMP WISSOTA LMS ASA MUD Truck Rat Rod NHRA IHRA K&N
Holley Premium 2300 Carb Rebuild Kit For 500 CFM.
Holley Rebuilder 2300 Carb Rebuild Kit For 500 CFM.
Phenolic Holley 500 CFM 2 Barrel Carburetor Adapter Plate IMCA Wissota UMP
