FUEL EXHAUST CARBURETION Parts in all columns same except where indicated 128 CHEVROLET 1977 ROCHESTER 4BC Continued See Model Reference for Application GROUP DESCRIPTION DTY 7 FLOAT BOWL PARTS Continued 3 814 PULL CLIP Float Needle 4 1 7033751 3 814 NEEDLE AND SEAT ASM 1 7035134 3 825 BALL Pump Discharge 1 7002117 3 825 RETAINER Pump Discharge 1 7029849 3 838 PUMP ASM Carb 1 17051374 3 841 SPRING Pump Return 1 7042979 3 843 ROD Pump 4 1 7026138 3 858 POWER Piston Asm 4 1 17051792 3 859 SPRING Power Piston 1 7036019 THROTTLE BODY PARTS 3 726 INSULATOR Carb Heat 1 354310 3 726 INSULATOR Flange 1 354310 3 729 TH ROTTLE BODY ASM I 17054405 3 741 SCREW Throttle Body 3 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 1 7036079 3 822 NEEDLE Idle 2 7048531 3 823 SPRING Idle Needle 2 7011479 ACCESSORIES 3 750 PIPE Choke Heat 1 355918 3 570 PIPE Choke Air 1 355921 WAREHOUS NG AND DISTRIBUTION olvlsiou or GENERAL MOTORS CORPORATION CHEVROLET 10 REV 5 81 3 65 c 3 000 GROUP