1983 HOLLEY 2 BC 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 N0 14048829 12 T 1 6C W A T MD2 CLOSED LOOP EXC P S A C 1 14076321 12 T 1 6C W M T MB4 FED ALT 2 14048827 12 T 1 6C W A T CLOSED LOOP A C 3 14048827 12 T 1 6C W A T CLOSED LOOP P S EXC A C 3 14048828 12 T 1 6C W M T MY1 CLOSED LOOP 4 1991 GENERAL MOTORS SERVICE PARTS OPERAT 0NS CHEVROLET 17W ti 3 125 3 132 6 91