1987 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 17087130 1 B 305H W A T MD8 MW9 FED CALIF 1ST DES 1 17087130 12 5 G 305H W A T FED CALIF 1ST DES 1 17087306 1 B 305H W A T MD8 MW9 FED CALIF 2ND DES 2 17087306 12 5 G 305H W FED CALIF 2ND DES 2 17087129 1 G 305G W A T MW9 FED CALIF 3 17086008 1234 B 307Y 4 NOTE 001 1ST 2ND DESIGNS IDENITIFIED BY OEM NUMBER STAMPED ON CARBURETOR GROUP DESCRIPTION QTY 1 2 3 4 5 3 725 CARBURETOR PRODUCTION 1 17087130 17087306 17087129 17086008 3 725 CARBURETOR SERVICE 1 17111485 17112048 17111478 17111487 3 724 GASKET KIT 1 17067999 17067999 17067999 3 725 POWER CARB KIT 1 17076043 17076043 17076043 17076141 3 730 AIR HORN KIT 1 17110391 17110391 17110391 17111488 3 820 COMPENSATOR KIT IDLE LOAD 1 17111104 3 750 COVER COIL KIT ELEC CHOKE 1 17068956 17068956 17068956 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 3 745 FLOAT INSERT KIT 1 17067445 17067445 17067445 17111103 3 734 FLOAT BOWL KIT 1 17110899 17112049 17110899 17111096 3 738 GASKET KIT AIR HORN 1 17067279 17067279 17067279 17111093 3 740 GASKET FILTER NUT 1 7024281 7024281 7024281 7024281 3 750 HOUSING KIT CHOKE 1 17068985 17068985 17068985 17111100 3 814 NEEDLE SEAT 1 7035134 7035134 7035134 7035134 3 740 NUT FUEL INLET FILTER 1 17051254 17051254 17051254 3 820 O RING KIT IDLE AIR BLEED VALVE 1 17079838 17079838 17079838 17079838 3 838 PUMP ASM 1 17051374 17051374 17051374 17051117 3 750 RETAINER KIT CHOKE COVER 1 17067078 17067078 17067078 17067078 3 806 ROD JET KIT METERING 1 17111697 17111697 17111698 17110136 3 724 SCREW ASSORT KIT MAJOR ASM ATTACH 1 17078935 17078935 17078935 17078935 L 3 764 SENSOR KIT THROTTLE POSITION 1 17078448 17078448 17078448 17078448 3 440 SOLENOID KIT IDLE 1 17068272 17068272 17068272 3 440 SOLENOID KIT MIXTURE CONTROL 1 17067344 17067344 17067344 17111102 3 757 SPRING CAM ASM AIR VALVE 1 7035344 7035344 7035344 3 825 SPRING ACCEL PUMP CHECK BALL 1 17083343 3 729 THROTTLE BODY KIT 1 17111479 17111479 17111479 17111489 3 755 VACUUM BREAK KIT PRIM 1 17067800 17067800 17067800 17067211 3 755 VACUUM BREAK KIT SEC 1 17111101 3 820 VALVE IDLE AIR BLEED 1 17067358 17067358 17067358 17079335 j 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17W 3 725 3 194 6 91