FUEL EXHAUST CARBURETION Parts in all columns same except where indicated CHEVROLET 1977 HOLLEY 2BC See Model Reference for Application GROUP DESCRIPTION DTV 1 2 3 4 5 6 AD AB AC AA All AF 3 725 CARBURETOR N0 Prod 1 458105 458103 456104 458102 458109 456107 3 725 CARBURETOR N0 Service 1 464054 464052 464053 464051 464058 464056 3 724 GASKET KIT Carb 4 1 464101 3 725 OVERHAUL KIT 1 464102 464102 464102 464102 464103 464103 AIR HORN PARTS 3 730 SCREW Air Hom 5 335094 3 730 AIR HORN 1 464195 464195 464017 464017 464019 464019 3 738 GASKET Air Horn 1 374770 THROTI LE BODY PARTS 3 726 GASK A1r Heat 1 1161 3 726 INSULATOR Carb Heat 1 331160 3 729 BODY ASM 1 NS NS NS NS NS NS 3 752 BUSHING Seo Oper Lvr 1 335102 v 5 3 761 SCREW Throttle Lever 1 NS 335087r NS 335087 NS 335087 3 761 SPRING Throttle Lever 1 1 NS 347087 NS 347087 NS 347067 3 762 LEVER ASM Sec Oper 1 335144 3 762 LEVER AND BUSHING ASM Thrut 1 464196 464067 345640 345640 464196 464067 3 762 NUT Throttle Lvr Ret Pri 1 360975 V 3 762 WASHER SHAFT Lvl g Pri 1 360992 3 762 WASHER Sec Oper Lvr 1 360963 3 762 WASHER Throt Lvr Pri 1 6259096 3 763 SPRING Throt Return Pri 1 345645 3 766 SCREW Idle Stop 1 335097 3 766 LEVER Idle St 1 335145 3 766 SCREW Sec l le Adi 1 360960 3 766 CAM AND HUB ASM Fas Idle 1 464093 464093 464094 464094 464094 464094 3 766 SPRING Fa fldle Cam 1 374795 3 766 SCREW Fast Idle Adj 1 374812 e 3J 66LSE3 ii9l i jasLidle A i S r 1 372i830 3 766 SPRING ldle Ad Needle 1 2285797 3 766 RETAINER Spring 1 6259044 3 766 LEVER Fast Idle Adj 1 464065 3 766 LEVER Fast Idle Com Pick Up 1 464064 464064 464064 464064 464063 464063 3 767 BUSHING Fast Idle Lever 1 335101 3 767 SCREW w LOCKWASHER Fast Idle Lvr 1 335095 3 768 ROD Fast Idle 1 345647 3 768 WASHER Fast Idle Ad Lever 1 6259098 3 768 WASHER Fast Idle Lever Spring 1 335138 CHOKE PARTS 3 750 HOUSING Choke Water 1 335122 3 750 GASKEI Choke Water Housing 1 335099 3 750 GASKEI Water Housing Ret crew 1 464066 3 750 COVER ASM Choke Diaphragm 1 360969 360969 360969 360969 464086 464086 3 750 HOUSING Carb Choke 1 360970 3 750 HOUSING ASM Thermostat 1 464099 3 750 SEAL Choke Housing 0 Ring 1 374833 3 750 RE T RING Therm Housing 1 335142 3 751 SCREW Choke Plate A R 335086 3 751 SCREW Thermo Hsg Ret 1 335090 3 751 SCREW w lockwasher Choke Housing 3 335092 3 752 RETAINER Choke Pull Off Int 1 NS NS NS NS 360973 360973 3 752 NUT Choke Shah 1 360976 3 752 SCREW Choke Water Housing Ret 1 360958 GM PARTS DIVISION GENERAL MOTORS c0RPORA ii0N cHEve0LET 10 I 3 000 GROUP 3 46 C REV 9 78 r