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 N0 17083206 1 G 305 7 1 17083204 1 B 305H W CLOSED LOOP 2 17083204 12 5 G 305H W CLOSED LOOP 2 GROUP DESCRIPTION QTY 1 2 3 4 5 3 725 CAR8URETOR PROOUCTION 1 17083206 17083204 3 725 CARBURETOR SERVICE 1 17079830 17110638 3 724 GASKET KIT 1 17067999 3 725 POWER CARB KIT 1 17076127 17076043 3 730 AIR HORN KIT 1 17110391 17110391 3 750 COVER COIL KIT ELEC CHOKE 1 17068956 17068956 3 740 FILTER FUEL INLET 1 5651803 5651803 3 745 FLOAT INSERT KIT 1 17067445 17067445 3 734 FLOAT BOWL KIT 1 17079227 17079227 3 738 GASKET KIT AIR HORN 1 17067279 17067279 3 740 GASKET FILTER NUT 1 7024281 7024281 3 750 HOUSING KIT CHOKE 1 17068985 17068985 3 814 NEEDLE SEAT 1 7035134 3 814 NEEDLE 8 SEAT KIT 1 17079832 3 740 NUT FUEL INLET FILTER 1 17051254 3 820 O RING KIT IOLE AIR BLEED VALVE 1 17079838 17079838 T 3 838 PUMP ASM 1 17051374 17051374 3 838 PUMP CUP GASOHOL HIGH AROMATIC FUELS 1 17074104 17074104 3 750 RETAINER KIT CHOKE COVER 1 17067078 17067078 3 806 ROD JET KIT METERING 1 17111698 17111697 3 764 SCREW PLUG KIT TPS 1 17079856 17079856 3 724 SCREW ASSORT KIT MAJOR ASM ATTACH 1 17078935 3 764 SENSOR KIT THROTTLE POSITION 1 17078448 17078448 3 440 SOLENOID KIT IDLE 1 17068272 17068272 3 440 SOLENOID KIT MIXTURE CONTROL 1 17067344 17067344 3 729 THROTTLE BODY KIT 1 17078537 17078537 3 755 VACUUM BREAK KIT PRIM 1 17067800 17067800 3 820 VALVE IDLE AIR BLEED 1 17067358 17067358 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS CHEVROLET 17W 3 725 3 188 6 91