FUEL EXHAUST CARBURETIZON CHEVROLE T MODEL REFERENCE 1985 ROCHESTER 4 BC FOLLOW PROCEDURE OUTLINED BELOW T0 DETERMINE CARBURETOR ANID OR PART NUMBER il DETERMINE VEHICLE MODEL CHECK VIN DIVISIONAL CODE 2 DETERMINE ENGINE AND CARBURETOR TYPE 3 PART NUMBER CAN BE DETERMINED BY CROSS REFERENCING CORRESPONDING COLUMN NUMBER WITH SAME COLUMN NUMBER ON CHARTS VIN PRODUCTION DIV CODE USAGE COL NO 17085204 12 F 305H W A T MD8 FED CALIF 1 17085207 ZL2 F 305H W M T M39 FED CALIF 2 17085203 12 F 305G W M T M39 3 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEvRC LET 17F FIEV 6 88 CARB 4BBL ROCH 15 3 725 GROUP