1990 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 17086009 6 D 5 0 9 W BO5 1 17088115 6 D 307Y 2 GROUP DESCRIPTION QTY 1 2 3 4 5 3 725 CARBURETOR PRODUCTION 1 17086009 17088115 3 725 CARBURETOR SERVICE 1 17111472 17111994 3 725 POWER CARB KIT 1 17076141 17076141 3 730 AIR HORN KIT 1 17111473 17112016 3 820 COMPENSATOR KIT IDLE LOAD 1 17111104 3 750 COVER 8 COIL KIT HOT AIR CHOKE 1 17110646 17110646 3 740 FILTER NUT FUEL INLET 1 17059861 3 740 FILTER FUEL INLET 1 5651803 5651803 3 745 FLOAT 8 INSERT KIT 1 17111103 17111103 3 734 FLOAT BOWL KIT 1 17111096 17112012 3 738 GASKET KIT AIR HORN 1 17111093 17111093 3 740 GASKET FILTER NUT 1 7024281 7024281 3 750 HOUSING KIT CHOKE 1 17111656 17111100 3 814 NEEDLE 8 SEAT 1 7035134 7035134 3 820 0 RING KIT IDLE AIR BLEED VALVE 1 17079838 17079838 3 838 PUMP ASM 1 17051117 17051117 3 750 RETAINER KIT CHOKE COVER 1 17067078 17067078 3 806 ROD 8 JET KIT METERING 1 17111477 17112014 3 724 SCREW ASSORT KIT MAJOR ASM ATTACH 1 17078935 17078935 3 764 SENSOR KIT THROTTLE POSITION 1 17078448 17078448 3 440 SOLENOID KIT IDLE 1 17111207 3 440 SOLENOID KIT MIXTURE CONTROL 1 17111102 17111102 3 757 SPRING 8 CAM ASM AIR VALVE 1 7035344 3 729 THROTTLE BODY KIT 1 17111475 17111995 3 755 VACUUM BREAK KIT PRIM 1 17067211 17067211 3 755 VACUUM BREAK KIT SEC 1 17111101 17111101 3 820 VALVE IDLE AIR BLEED 1 17079335 17112015 ADDITIONAL ATTACHING PARTS DIV GROUP MODEL USAGE NOUN NAME 8 DESCRIPTION QTY PART 6 3 726 D 307Y GASKET CARB 01 22508038 6 3 726 D 5 0 9 W B05 GASKET CARB O1 22508038 6 3 726 D 5 0E GASKET T B I 01 10129663 6 3 750 D 5 0 9 W B05 PIPE CHOKE CLEAN AIR 01 419302 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS CAD LLAC 62D tT 3 725 3 46 11 92