1 FUEL EXHAUST CARBURETTON C272 CHEVROLET 1 1980 ROCHESTER 280 Continued See Model Reference for Application GROUP DESCRIPTION OTY 56 57 58 59 60 1 3 741 SCREW throttle body AR 17053590 17053590 17060653 17060653 17060653 3 454 SCREW throttle lever to body 4 I 3 444 SCREW throttle stop 1 17057276 17057276 17057276 3 755 SCREW vac brk attach 1 3 755 SCREW vac brk attach bottom 1 7045558 7045558 3 755 SCREW vac brk attach top 1 7045470 7045470 7045470 1 3 730 SCREW vent stack attach 1 17061983 17061983 17057179 3 820 SCREW vent valve cover 1 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 hsi to bowl 1 3 752 SEAL inter cho e shaft dust 1 17058488 17058488 3 858 SEAL solenoid to float bowl 1 17057520 1 3 764 SENSOR throttle position 1 1 3 752 SHAFT ASM choke 1 7041234 7041234 3 752 SHAFT ASM inter choke 1 17060997 17060997 3 750 SHAFT 8 LEVER choke 1 7045256 7045256 7045494 3 752 SHAFT 8i LEVER ASM inter choke 1 17063458 17063458 7045451 3 842 SHAFT LEVER pump 1 3 440 SOLENOID UNIT w brkt 1 17064873 1 3 440 SOLENOID idle stop 1 17060708 17061814 3 440 SOLENOID mixture control 1 17063279 17063279 17066911 1 3 766 SPRING cam lever J 1 17051494 17051494 1 3 753 SPRING choke valve 1 1 1 3 766 SPRING fast idle screw 1 7029900 7029900 3 470 SPRING fuel filter 1 7032732 7032732 7032732 7032732 7032732 1 3 870 SPRING govemor 1 I I 3 823 SPRING idle needle AR 3 766 SPRING idle stop screw 1 7003178 7003176 3 810 SPRING metering rod prim 1 17057068 17057068 3 859 SPRING pwr piston 1 7037851 7037851 3 825 SPRING pump discharge 1 7002118 7002118 7002118 1 3 841 SPRING pump return 1 7042979 7042979 17060690 17060690 7042979 3 764 SPRING sensor adiustment 1 1 3 858 SPRING solenoid screw 1 17052262 17062262 3 858 SPRING solenoid rtn I 17057074 17057074 1 3 766 SPRING throttle stop screw 1 7011479 7011479 7011479 I 3 750 STAT COVER COIL elect 1 17070062 17070062 17063239 17063239 17064998 1 3 750 STAT COVER COIL GASKET 1 3 761 STOP UNIT carb throttle 1 3 755 VACUUM BREAK 8i BRACKET choke side aux 1 17060518 17060518 4 3 755 VACUUM BREAK SI BRACKET 1 rear aux 1 1 3 755 VACUUM BREAK BRACKET Main throttle side 1 3 755 VACUUM BRK BRKT primary 1 17064232 3 755 VACUUM BRK BRKT secondary 1 17062339 17062339 3 755 VACUUM BREAK CONTROL BRACKET choke side 1 17060808 17060808 17070012 I 3 751 VALVE choke 1 7048904 7048904 7045276 7045276 17057199 3 820 VALVE idle air bleed 1 17063921 17063921 1 3 730 VENT STACK 1 17057496 17057496 17063314 1 3 786 VENTURI CLUSTER 1 3 823 WASHER idle needle spring 1 1 3 832 WASHER pump lever I 17058548 1 1 3 444 WASHER tab locking 1 7045479 7045479 I GM PARTS DIVISION GENERAL MOTORS c0RPORATION CHEVROLET Io 1 REV 9 80 3 223 c 3 000 GROUP 1