Thread: holley 600 help
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Old 08-24-2016, 09:38 AM
Junior Member
Join Date: Jul 2009
Posts: 1

One of the power valves may be stuck open , cycle it with your finger , look at the metering block , eye level with the mixture screw, see if there is a brass restrictor in the second hole over from the power valve on each side, and see if u can find the diameter of the hole ,, check the idle air bleeds at the top ( google a pic ) toward the outside and see if they are blocked
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