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Old 08-26-2012, 01:05 PM
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Adjusting the secondary butterflies on a Holley?

Would something like this work on a Holley Street Avenger 670 with vacuum secondaries, or should I just put in a new allen screw from the top of the throttle plate. Any suggestions on what you guys have done to make adjusting the secondary butterflies easier.

ProformParts.com - ADJUSTABLE SECONDARY CAM BRACKET
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