GM3 25 i 1977 78 ROCHESTER 2 BBL CARBURETOR M2MC 1 SHAFT Choke 3 752 2 VALVE Choke 3 751 3 SCREW Valve Choke 3 7g1 4 SCREW Air Horn Short 3 7 0 5 SCREW Air Horn Long 3 730 6 HORN Air 3 730 7 SPRING Metering Rod Primary 3 810 I 8 PISTON Power 3 858 9 ROD Metering Primary 3 806 10 LEVER Pump Actuating 3 842 11 ROD Pump 3 843 12 PUMP Carburetor 3 838 13 PLUG Pump Discharge 3 825 14 BALL Pump Discharge 3 825 15 SPRING Pump Return 3 838 V 16 INSERT Float Bowl 3 734 17 GASKET Air Horn 3 738 18 SPRING Power Piston Primary 3 858 19 JET Primary 3 792 20 FLOAT Carburetor 3 745 21 PIN Float Lever Hinge 3 747 22 CLIP Float Needle Pull 3 814 23 SPRING Idle Stop Screw 3 766 24 SCREW Idle Stop 3 766 25 GASKET Needle Seat Part of Kit N S I 26 NEEDLE Carb W Seat 3 814 27 BOWL Float 3 734 28 NUT Fuel Inlet Filter 3 740 29 ARM Part of Item 35 N S 30 GASKET Throttle Body Part of Kit N S U 31 SPACER Part of Item 35 N S 32 STOP Part of Item 35 N S 33 SPRING Idle Needle 3 823 34 NEEDLE Idle 3 822 35 BODY Throttle 3 729 36 SCREW Throttle Body 3 741 37 SCREW Fast Idle Adjusting 3 766 38 SPRING Fast Idle Adj Screw 3 766 39 LEVER Fast Idle 3 766 40 SPRING Fast Idle Screw 3 766 41 SCREW Fast Idle 3 767 42 LEVER Cam Follower 3 766 43 SCREW Thermostat Cover 3 750 44 RETAINER Thermostat Cover 3 750 45 COVER W Coil Gasket 3 750 46 SCREW Choke Lever 3 752 V 47 LEVER Thermostat Coil 3 752 i 48 SCREW Choke Housing 3 750 49 SEAL Choke Housing to Bowl 3 752 2 50 HOUSING Choke 3 750 51 CAM Fast Idle 3 752 A 52 LEVER Intermediate Choke 3 752 53 SEAL Intermediate Choke Shaft 3 752 54 LINK Vacuum Break 3 755 55 CONTROL Vac Break Front W Brkt 3 755 56 SCREW Control Attaching 3 755 57 INSERT Aneroid Cavity 3 806 58 HOSE Vacuum 8 962 i 59 BREAK Aux Rear W Brkt 3 755 60 SCREW Aux Vacuum Break 3 755 61 ROD Choke I 3 752 1 62 LEVER Intermediate Choke 3 752 63 SCREW Choke Lever 3 751 64 LEVER Choke 3 752 65 SCREW Air Horn 3 730 66 LEVER Part of Item 35 N S NOTE See Carburetor Charts GM PARTS DIVISION GENERAL MOTORS CORPORATION BUlCK 41A 9 80 3 vs 3 000 GROUP