FUEL EXHAUST CARBURETION L220 OLDSMOBILE 1980 ROCHESTER 2BC Continued See Model Reference for Application GROUP DESCRIPTION OTY 51 52 53 3 741 SCREW throttle body AR 20363125 20363125 20363125 3 454 SCREW throttle lever to body 1 3 444 SCREW throttle stop 1 17057276 17057276 17057276 3 755 SCREW vac brk attach 1 3 755 SCREW vac brk attach bottom 1 17071291 17071291 17071291 3 755 SCREW vac brk attach top I 17066683 17066683 17066683 3 730 SCREW vent stack attach 1 3 820 SCREW vent valve cover 1 3 790 SCREW venturi cluster bracket center 1 3 790 SCREW venturi cluster outer AR 3 752 SCREW wire clamp 1 3 752 SEAL choke hsg to bowl 1 3 752 SEAL inter choke shaft dust 1 3 858 SEAL solenoid to float bowl 1 17057520 17057520 17057520 3 764 SENSOR throttle position 1 3 752 SHAFT ASM choke 1 3 752 SHAFT ASM inter choke 1 3 750 SHAFT 8i LEVER choke 1 7045494 7045494 7045494 3 752 SHAFT LEVER ASM Inter choke 1 7045451 7045451 7045451 3 842 SHAFT LEVER pump 1 3 440 SOLENOID UNIT w brkt 1 3 440 SOLENOID Idle stop I 17067425 17067425 17067425 3 440 SOLENOID mixture control I 17066911 17066911 17066911 3 766 SPRING cam lever 1 3 753 SPRING choke valve 1 3 766 SPRING fast idle screw 1 3 470 SPRING fuel filter 1 7032732 7032732 7032732 3 870 SPRING governor 1 3 823 SPRING idle needle AR 3 766 SPRING idle stop screw 1 3 810 SPRING metering rod prim I 3 859 SPRING pwr piston 1 3 825 SPRING pump drscharge 1 7002113 7002113 7002113 3 841 SPRING pump return 1 7042979 7042979 7042979 3 764 SPRING sensor ad1ustment 1 3 858 SPRING solenoid screw 1 L 3 858 SPRING solenoid rtn 1 3 756 SPRING throttle stop screw 1 7011479 7011479 7011479 3 750 STAT COVER Ei COIL elect 1 17054993 17070172 17070172 3 750 STAT COVER COIL GASKET 1 3 761 STOP UNIT carb throttle 1 3 755 VACUUM BREAK BRACKET choke side aux 1 4 3 755 VACUUM BREAK BRACKET rear aux 1 3 755 VACUUM BREAK BRACKET Main throttle side 1 3 755 VACUUM BRK BRKT primary 1 3 755 VACUUM BRK BRKT secondary 1 3 755 VACUUM BREAK CONTROL BRACKET choke slde 1 17070012 17070012 17070012 3 751 VALVE choke 1 17057199 17057199 17057199 3 820 VALVE Idle arr bleed 1 3 730 VENT STACK 1 17053314 17053314 17053314 3 786 VENTURI CLUSTER 1 3 823 WASHER idle needle spring 1 L 3 832 WASHER pump lever 1 17053543 17053543 17053543 3 444 WASHER tab Iocklng 1 7045479 7045479 7045479 3 730 SCREW KIT air horn 1 17079743 17079743 17079743 3 838 PUMP CUP KIT heavy duty 1 17110591 17110591 17110591 1 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS OLDSMOBILE 3l 3 000 GROUP 3 170 C REV 7 87