FUEL EXHAUST CARBURETION C254 CHEVROLET 1980 ROCHESTER ZBC Continued See Model Reference for Application GROUP DESCRIPTION OTY 26 27 28 29 30 3 741 SCREW throttle body 4 t AR 17060653 4 4 4 4 3 454 SCREW throttle lever to body 1 4 3 444 SCREW throttle stop 1 17057276 4 4 4 4 3 755 SCREW vac brk attach 1 4 r 4 3 755 SCREW vac brk attach bottom 1 7045558 4 4 4 7 3 755 SCREW vac brk attach top 1 7045470 4 4 4 4 3 730 SCREW vent stack attach 1 17061983 4444 3 820 SCREW vent valve cover 1 4 444 3 790 SCREW Venturi cluster bracket center 1 4444 3 790 SCREW Venturi cluster outer AR 444 4 3 752 SCREW wire clamp 1 4444 4 3 752 SEAL choke hsg to bowl 1 44444 3 752 SEAL inter choke shaft ldust 1 4 7037569 7037569 7037569 7037569 3 858 SEAL solenoid to float bowl I 44444 3 764 SENSOR throttle p0sItion 1 44444 3 752 SHAFT ASM choke 1 4 7041234 7041234 7041234 7041234 3 752 SHAFT ASM Inter choke I 444 4 3 750 SHAFT SI LEVER choke I 7045256 4444 3 752 SHAFT SI LEVER ASM inter choke 1 17060997 17063458 17063458 17063458 17063458 3 842 SHAFT SI LEVER pump 1 4 4 4 4 4 3 440 SOLENOID UNIT w brkt 1 4 4 17061769 4 4 3 440 SOLENOID idle stop 1 17060708 4 44 3 440 SOLENOID mixture control 1 44444 3 766 SPRING cam lever I 4 17051494 17051494 17051494 17051494 3 753 SPRING choke valve 1 44444 4 3 766 SPRING fast Idle screw 1 4 7029900 7029900 7029900 7029900 3 470 SPRING fuel filter 1 7032732 7032732 7032732 7032732 7032732 3 870 SPRING governor 1 4 4444 3 823 SPRING idle needle AR 4 44 3 766 SPRING Idle stop screw I 4 7003176 7003176 7003176 7003176 3 810 SPRING metering rod Ipnm 1 4 7041459 7041459 7041459 7041459 3 859 SPRING pwr piston 1 7037851 17052057 17052057 7036019 7036019 3 825 SPRING pump discharge 1 7002118 4444 3 841 SPRING pump return 1 17060690 7042979 7042979 7042979 7042979 3 764 SPRING sensor adjustment I 44444 3 858 SPRING solenoid screw 1 44444 3 858 SPRING solenoid rtn I 44444 3 766 SPRING throttle stop screw 1 7011479 4444 3 750 STAT COVER S COIL elect 1 17063239 17064473 17064473 17064215 17063451 3 750 STAT COVER COIL SI GASKET I 44 4 3 761 STOP UNIT carb throttle 1 4 4 4 4 3 755 VACUUM BREAK SI BRACKET Ichoke side aux 1 4444 4 3 755 VACUUM BREAK SI BRACKET rear aux 1 4444 4 3 755 VACUUM BREAK SI BRACKET lMain throttle sIde 1 44444 3 755 VACUUM BRK SI BRKT primary 1 4444 3 755 VACUUM BRK SI BRKT secondary 1 17062339 4 4 4 4 3 755 VACUUM BREAK CONTROL SI BRACKET choke side 1 4 17063485 17063485 17063485 17063485 3 751 VALVE choke 1 7045276 7048904 7048904 7048904 7048904 3 820 VALVE idle air bleed 1 44444 3 730 VENT STACK I 17057496 4 44 3 786 VENTURI CLUSTER 1 44 4 4 3 823 WASHER idle needle sprmg 1 44444 3 832 WASHER pump lever 1 44444 3 444 WASHER tab locking I 7045479 4 4 3 755 VACUUM BREAK ASM primary I 17062342 4 4 4 44WAREROU5ING AND DISTRIBUTION DIVISION OF GENERAL MOTORS C0RPORATI0N4cHEVRoLET Io44 REV 5 81 3 205 c 3 000 GROUP