FUEL EXHAUST CARBURETION A Parts in all colum s same xcept here i dicat d B103 BUICK 1977 ROCHESTER 4BC Continued See Model Reference for Application GROUP DESCRIPTION OTY 1 2 3 4 5 6 E C ww L f 1 j S Y 3 792 JET Primary 2 7031973 7031973 7031973 7031972 7031974 7031974 3 806 INSERT Aneroid Cavity 1 7044330 7044330 7044330 17051796 7044330 7044330 3 810 SPRING Metering Rod Primary 1 7041459 3 814 PULL CLIP Float Needle 1 7033751 3 814 NEEDLE AND SEAT ASM 1 7035134 7035134 7035134 7035150 7035134 7035134 3 825 BALL Pump Discharge 1 7002117 3 825 RETAINER Pump Discharge 1 7029849 3 838 PUMP ASM Carb 1 7048867 7048867 7048867 17051117 7048867 7048867 3 841 SPRING Pump Return 1 7042979 3 843 ROD Pump 1 7026138 3 858 POWER PISTON ASM 1 7044449 7044449 7044449 17051792 7044449 7044449 3 859 SPRING Power Piston 1 7045195 7045195 7044432 7029922 17051705 17051705 THROTTLE BODY PARTS 3 726 GASKET Flange 1 419047 419047 419047 1248516 1248516 419047 3 729 THROTTLE BODY ASM 1 17054087 17054087 17070001 17056885 17054089 17054089 3 741 SCREW Throttle Body AR 7035790 3 766 LEVER Cam Follower 1 7041497 3 766 SPRING Fast Idle Screw 1 7029900 3 766 SCREW Fast Idle Adj 1 7044794 3 766 LEVER Fast Idle 1 7041498 3 766 SPRING Cam Lever 1 17051494 3 767 SCREW Fast Idle Lever Attach I 7036079 3 822 NEEDLE IdIe 2 7048532 3 823 SPRING Idle Needle 2 7011479 I I I I GG G G A 3 5 1PE cnb a Air 1 419302 3 750 PIPE Choke Heat 1 NS 3 755 SWITCH Thermo Vac Choke 1 3035810 3 755 CONNECTOR Carb Fuel ini 1 3979424 WAREHOUSlNG Ano oisrnieurion oivision OF GENERAL ivioroes CORPORATION BU CK 41 REV 5 81 3 37 c 3 000 GROUP