HOLLEY Model 2245 2-Barrel: Description

Holley model 2245 dual venturi carburetor utilizes four basic fuel metering systems: Idle system provides mixture for idle and low speed; accelerator pump system provides additional fuel for acceleration; main metering system provides an economical mixture for normal cruising; and power enrichment system provides a richer mixture when high power output is required.

In addition to these fuel systems, the carburetor uses an automatic choke and choke diaphragm. Automatic choke is assisted by an electric heating element, to provide for shorter choke duration in warm weather. Choke diaphragm prevents overchoking by opening choke valve when engine is being cranked.