Carburetor - HOLLEY 1949 (CANADA): Description

The Holley model 1946-IV carburetor is a single-barrel downdraft design. The carburetor consists of 3 main sub-assemblies: air horn, main body and throttle body. Air horn houses choke valve, accelerator pump system, vacuum controlled power enrichment valve piston assembly, choke bimetal assembly and fuel bowl and vent assembly.

Main body houses fuel inlet system (float assembly and needle valve), main metering jet, power enrichment valve assembly, accelerator pump check ball and weight. Throttle body houses throttle valve, linkage and tamper-proof idle mixture adjusting needle.