You can go
here to see all the carbs Holley has listed on their website. Discontinued models will not be listed here. Use the number on the front of the choke air horn.
This is a list of the standard double pumper carburetors.
Part Number Name
0-4776C
600 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4776S
600 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4777S
650 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4777C
650 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4778C
700 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4778S
700 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4779S
750 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4779C
750 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4780C
800 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4780S
800 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4781C
850 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150
0-4781S
850 CFM Four Barrel Street/Strip Carburetor
Mechanical Secondaries; Manual Choke; Model 4150