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Old 04-24-2013, 11:11 AM
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I am thinking you are opening the secondaries too far. Close them off and set the t-slot on the primaries to .020. I am not a big guru with Holley carbs, but doesnt this carb have 2 idle adjustment screws instead of the 4 corner? If so, then the seconardaries would be closed. F-Bird will set this straight since he is on here already. Others may also charm in, but this is what I am taking out of your post.
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