FUEL EXHAUST CARBURETION CHEVROLET MODEL REFERENCE 1986 ROCHESTER 4 BC EXPORT CANADA FOLLOW PROCEDURE OUTLINED BELOW T0 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 NO 17086581 12 7 F 305H W M T NM5 EXPORT CANADA EXC A C 1 17086582 12 7 F 305H W A T MD8 NM5 EXPORT CANADA A C 2 17086580 12 7 F 305H W A T MD8 NM5 EXPORT CANADA EXC A C 3 17086583 12 7 F 305H W M T NM5 EXPORT CANADA A C 4 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F REV 6 88 CARB 7I BBL ROCH 35 3 725 GROUP