1985 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 17085202 1 G 305G W A T MW9 FED CALIF 1 17085204 12 B 305H W A T MD8 FED CALIF 2 17085204 12 5 G 305H W A T FED CALIF 2 GROUP DESCRIPTION QTY 1 2 3 4 5 3 725 CARBURETOR PROOUCTION 1 17085202 17085204 3 725 CARBURETOR SERVICE 1 17110898 17110902 3 724 GASKET KIT 1 17067999 17067999 3 725 POWER CARB KIT 1 17076043 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 17110899 17110899 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 7035134 3 740 NUT FUEL INLET FILTER 1 17051254 17051254 3 820 O RING KIT IDLE AIR BLEED VALVE 1 17079838 17079838 3 838 PUMP ASM 1 17051374 17051374 3 750 RETAINER KIT CHOKE COVER 1 17067078 17067078 3 806 ROD JET KIT METERING 1 17111698 17111697 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 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 ADDITIONAL ATTACHING PARTS DIV GROUP MODEL USAGE NOUN NAME DESCRIPTION QTY PART 1 4 3 737 X 2 8X W FED BRACKET CARB BOWL VENT SOL O1 14073443 1 3 726 B G 4 3Z GASKET TBI 01 14081271 1 4 3 755 X 2 8X HARNESS CARB VAC BREAK 01 14062214 1 4 3 755 X 2 8X HARNESS CARB VAC THROT 01 14072015 1 4 3 755 X 2 8X Z W A I R HARNESS CARB VAC THROT 01 10044900 1 7 3 726 B G 231A EXPORT CANADA HEATER CARB AIR TO INT MANIF 01 25526373 1 4 3 726 X 2 8X INSULATOR CAR8 HEAT 01 14059380 12 3 726 B G 305H INSULATOR CARB HTR 01 10069984 1 3 726 G 305G 7 INSULATOR CARB HTR 01 10069984 12 3 725 T INSULATOR EFE HEATER O1 14032308 1 4 3 726 X 2 5R INSULATOR THROTTLE BODY UNIT TO INT FOA 01 10140578 1 3 750 X 2 8X W GAGES RELAY CHOKE HTR CONT 01 14089568 1 4 3 750 X 2 8X SWITCH CHOKE HTR 01 25036553 1 5 3 750 G 305G H SWITCH CHOKE HTR 1 800 O1 10002798 25526373 NOTE 2ND DES C 3 0E USED W 20 BOLT OIL PAN TO ENG ATTACH 1991 GENERAL MOTORS SERVICE PARTS 0PERAT ONS CHEVROLET 17W 3 725 3 192 6 91