How to modify your Holley Power Valve Circuit

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#3 (permalink)

11-30-2009, 12:13 PM

Gunner

CC Member

Join Date: Sep 2009

Location: Sacramento, CA

Cobra Make, Engine: ERA 707, 446ci FE

Posts: 1,115

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Any tips or rule of thumb on determining a starting size for the new jet? I ass/u/me you want to start some significant size smaller than stock and increase one drill size at a time.

Should the inserts be removed from the metering block for redrilling?

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