Used Holley 750 (choke removed), running fine when taken off Mopar 440 a few years ago but will no doubt need a checking over before using, was last used for dyno testing a rebuilt 440, sold as seen.
Holley 750 CFM Double Pumper 4-barrel carburetor
Quadrajet Carburetor For Chevy 327 350 427 454 750 CFM 4 Barrel 4MV*
Quadrajet Carburetor For Chevy 327 350 427 454 750 CFM 4 Barrel 4MV BF
Quadrajet Carburetor For Chevy 327 350 427 454 750 CFM 4 Barrel 4MV DA
Quadrajet Carburetor For Chevy 327 350 427 454 750 CFM 4 Barrel 4MV YT
BR-67200 Racing Carburetor Mechanical Secondary 750 CFM 4 Barrel Square Hole