FUEL EXHAUST 1 CARBURETION CHEVROLET MODEL REFERENCE 1983 ROCHESTER 4 BC EXPORT CANADA FOLLOW PROCEDURE OUTLINED BELOW TO DETERMINE CARBURETOR AND OR PART NUMBER 1 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 N0 17083282 12 7 F 305H W M T NM6 EXPORT CANADA EXC A C 1 17083281 12 7 F 305H W A T A C NM6 EXPORT CANADA 2 17083283 12 7 F 305H W M T A C NM6 EXPORT CANADA 3 17083280 12 7 F 305H W A T NM6 EXPORT CANADA EXC A C 4 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F REV 6 88 CARB 4BBL ROCH 29 3 725 GROUP