FUEL EXHAUST CARBURETION B121 BUICK 1978 ROCHESTER 2BC See Model Reference for Application GROUP DESCRIPTION OTY 21 22 23 24 25 3 725 CARBURETOR Production 1 17058188 17058180 17058185 17058187 17058189 3 725 CARBURETOR Service 1 17065163 17065248 17065185 17065185 17065185 3 724 GASKET KIT 1 17055564 17055564 17055564 17055564 17055564 3 725 OVERHAUL KIT 1 17065165 17065165 17065193 17065165 17065165 3 725 POWER CARB KIT 1 7039338 7039338 7039336 7039338 7039338 3 730 AIR HORN 1 17055562 17065246 17055562 17055562 17055562 3 825 BALL pump discharge 1 7002117 7002117 7002117 7002117 7002117 3 826 BALL pump inlet check 1 17050240 17050240 17050240 17050240 17050240 3 729 BODY ASM throttle 1 17055589 17065247 17065196 17065196 17065196 3 734 BOWL ASM float 1 17055594 17055594 17065190 17065190 17065190 3 459 BRACKET throttle return NS 4 3 444 BRACKET WASHER solenoid 1 NS 17061045 3 766 CAM fast idle 1 17051489 17050023 17051489 17051489 17051489 3 750 CHOKE HOUSING KIT 1 17054720 17054720 17054720 17054720 17054720 3 814 CLIP float needle pull 1 NS 3 838 CLIP pump 1 7005032 7005032 7005032 7005032 7005032 3 838 CLIP pump rod 1 7018186 7018186 7018186 7018186 7018186 3 820 COVER vent valve 17050272 17050272 17050272 17050272 17050272 3 740 ELBOW fuel inlet 1 NS 3 740 FILTER fuel inlet 1 5651802 5651802 5651802 5651802 5651802 3 740 FILTER NUT fuel inlet 1 17051765 17051765 17051765 17051765 17051765 3 745 FLOAT ASM 1 7037512 7037512 7037512 7037512 7037512 3 738 GASKET air horn 1 17050409 17050409 17050409 17050409 17050409 3 750 GASKET choke housing to throttle body 1 7037796 7037796 7037796 7037796 7037796 3 740 GASKET filter nut 1 7032508 7032508 7032508 7032508 7032508 3 750 GASKET stat cover 1 NS 3 820 GASKET vent valve cover 17053051 17053051 17053051 17053051 17053051 I 3 825 GUIDE pump discharge 1 7000286 7000286 7000286 7000286 7000286 3 822 IDLE NEEDLE AR 17057983 17057983 17057983 17057983 17057983 3 820 IDLE vent valve kit 17052733 17052733 17052733 17052733 3 806 INSERT aneroid cavity 1 NS 3 734 INSERT float bowl 1 NS 3 734 INSERT main well AR 7037286 7037286 7037286 7037286 7037286 3 792 JET primary 1 7002646 3 766 LEVER cam follower 1 NS 3 752 LEVER choke 1 NS 3 752 LEVER choke shaft 1 7030796 7030796 7030796 7030796 7030796 3 752 LEVER choke valve adjusting 1 7047882 7047882 7047882 7047882 7047882 3 766 LEVER fast idle 1 NS 3 752 LEVER inter choke 1 7030990 7030990 7030990 7030990 7030990 3 842 LEVER pump actuating 1 NS 3 842 LEVER pump inside 1 7032377 7032377 7032377 7032377 7032377 A 3 752 LEVER stat coil 1 NS 3 755 LINK aux vac break NS 7043157 7043157 7043157 7043157 3 755 LINK vacuum break choke side 1 NS 3 755 LINK aux vacuum break choke side 7043157 3 755 LINK vacuum break throttle side 7038874 7038874 7038874 7038874 7038874 3 725 MODIFICATION KIT 17065314 17065314 3 814 NEEDLE SEAT 1 7035152 7035152 7035152 7035152 7035152 3 440 NUT solenoid retaining 1 NS 7042654 3 440 NUT throttle stop retaining NS 3 747 PIN float hinge 1 7002081 7002081 7002081 7002081 7002081 3 750 PLATE baffle 1 NS 3 858 POWER PISTON 1 7037811 7045898 7009054 7037811 7037811 3 858 POWER VALVE 1 NS 3 858 POWER VALVE aux mechanical 17050246 17050246 17050246 17050246 17050246 3 858 POWER VALVE vacuum 17060432 17060432 17053647 17060432 17060432 3 838 PUMP ASM bowl 1 17057911 17057911 17058976 17057911 17057911 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATlON BU CK 41 3 000 GROUP a se c REV 5 81