Holley stumble trouble

mderoy340 said

Very easy to adjust when the vacuum pod starts moving if using an adjustable OEM vac can. CCW- CW+ 3/32 allen wrench.

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Any idea how wide the sweep is? What I mean is if the screw is backed all the way out, at what rpm does it begin to move? What if it’s cranked in the whole way? Does that disable the advance or what rpm is now required to activate it?