Holley vacuum secondary 4-barrel carburetor base plate. Casting number 12r-4770b. Linkage moves free. Throttle arm wiggles on shaft, could use spot weld. See pics for condition.
Holley 4-barrel Carburetor Baseplate Vacuum Secondary 12r-4770b 750 780 CFM 3310
GENUINE Edelbrock 1405 Performer 600CFM 4Barrel Carburetor Manual Choke NEW
4Barrel Carburetor For 1967 1968 1969-1970 Pontiac 350 400 428 455 Firebird 6.6L
4Barrel Carburetor Fit 1967 1968 1969 1970 Pontiac 350 400 428 455 Firebird 6.6L
4Barrel Carburetor For 1967 1968 1969 1970 Pontiac 350 400 428 455 Firebird 6.6L
600 CFM For Holley 4160 Carburetor 4-Barrel Carburetor Set 600 CFM Carburetor
