1983 ROCHESTER 4 BC 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 NO 17082265 4 B 4 1 4 W A T MX2 FED 1 17059323 4 B 4 1 4 W A T FED CALIF 2 17082266 4 B 4 1 4 W A T MW9 CLOSED LOOP 3 17083253 34 B 307 W CLOSED LOOP 4 17059325 4 G 4 1 4 W A T FED CALIF 5 17082268 4 G 4 1 4 W A T MX2 FED CALIF 6 17083244 4 G 231 8 7 GROUP DESCRIPTION QTY 1 2 3 4 5 3 725 CARBURETOR PRODUCTION 1 17082265 17059323 17082266 17083253 17059325 3 725 CARBURETOR SERVICE 1 17111228 17111228 17111228 17079343 17111230 3 725 POWER CARB KIT 1 17076131 17076131 17076131 17076044 17076131 3 730 AIR HORN KIT 1 17110409 17110409 17110409 17110415 17110411 3 820 COMPENSATOR KIT IDLE LOAD 1 17068403 3 766 CONTROL KIT IDLE SPEED 1 17079137 17079137 17079137 17079137 3 750 COVER COIL KIT ELEC CHOKE 1 17068871 17068871 17068871 17068871 3 750 COVER COIL KIT HOT AIR CHOKE 1 17110646 3 740 FILTER NUT FUEL INLET 1 17059861 3 740 FILTER FUEL INLET 1 5651803 5651803 5651803 5651803 5651803 3 745 FLOAT INSERT KIT 1 17068327 17068327 17068327 17068327 17068327 3 734 FLOAT BOWL KIT 1 17079268 17079268 17079268 17079376 17079262 3 738 GASKET KIT AIR HORN 1 17067279 17067279 17067279 17067279 17067279 3 740 GASKET FILTER NUT 1 7024281 7024281 7024281 7024281 7024281 3 750 HOUSING KIT CHOKE 1 17079270 17079270 17079270 17079344 17079264 3 814 NEEDLE SEAT 1 7035134 3 814 NEEDLE SEAT KIT 1 7035150 7035150 7035150 7035150 3 740 NUT FUEL INLET FILTER 1 17051254 17051254 3 820 O RING KIT IDLE AIR BLEED VALVE 1 17079838 17079838 17079838 17079838 17079838 3 838 PUMP ASM 1 17072978 17072978 17072978 17053072 17072978 3 838 PUMP CUP KIT HEAVY DUTY 1 17110591 T 17110591 T 3 838 PUMP CUP GASOHOL HIGH AROMATIC FUELS 1 17074103 3 750 RETAINER KIT CHOKE COVER 1 17067078 17067078 17067078 17067078 17067078 M 3 806 ROD JET KIT METERING 1 17078480 17078614 3 764 SCREW PLUG KIT TPS 1 17079856 17079856 17079856 3 724 SCREW ASSORT KIT MAJOR ASM ATTACH 1 17078935 17078935 3 764 SENSOR KIT THROTTLE POSITION 1 17078448 17078448 17078448 17078448 17078448 3 440 SOLENOID KIT MIXTURE CONTROL 1 17067343 17067343 17067343 17067343 17067343 3 729 THROTTLE BODY KIT 1 17078477 17078477 17068898 17078518 17068932 3 755 VACUUM BREAK KIT PRIM 1 17067438 17067438 17067438 17067211 17067438 3 755 VACUUM BREAK KIT SEC 1 17068931 17068931 17068927 17068834 17068931 3 820 VALVE IDLE AIR BLEED 1 17078467 17078467 17078467 17078615 17078491 i 1991 GENERAL MOTORS SERVICE PARTS OPERATlONS BU CK 44W L L 3 725 3 176 6 91