???? Rochester Quadrajet 4-Barrel Carburetor – 750CFM for Chevy & GMC Engines ????. 1 x Rochester Quadrajet 4-Barrel Carburetor. Chevy Cars (1966-1973) : 327, 350, 396, 400, 402, 427, 454 c.i. engines. Specific engine generations: Small Block Gen I (327, 350, 400) and Big Block Mark IV (396, 402, 427, 454).
