1966 67 Corvette 327 300HP Holley 4BBL Intake Chevelle 783 GM factory original 327 300HP cast iron Holley intake 4- barrel manifold, square mounting flange casting # 3872783 date code K165 Oct 16th 1965. Also excepts Edelbrock &Carter AVS carburetors. I believed for 1966 model year this intake was found on another small block Chevrolet Impala, Chevelle. Chevy II Nova, Beaumont, Canadian Pontiac, Acadian, Chevy & GMC trucks as 327 275HP with Carter AVS $250.