Holley 94 Idle Tubes


The Holley 94, 2100 and 2110 use 2 idle tubes (#44). You can get a rough idle if these tubes are plugged. These have very small orifices and need to be clear. Ethanol will leave residue behind so normal cleaning may not do the job. Very thin wire can be used to push the residue out, just don't damage the hole making them larger.

The tubes simply unscrew but if stuck, then apply a bit of heat to the outside of the venturi. That will usually kick it loose.

Make sure the gaskets #54 are in place and not split, or damaged.


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