Thread: Problems With Idle

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Have you checked your vacuum idling in drive? Are you running the power valve that came with the carb? Many, if not most street Holleys come with a 6.5 power valve. If your vacuum is less than that at idle, you load up at idle. I was washing down the cylinders and my oil was full of gas within a few miles. Finally figured out the problem but ended up tearing down the motor to replace the bearings. Vacuum, power valve. One more thing. All the books I bought about Holley carbs, the best was the big fat Holley catalog I got free at a car show. Maybe you can get one from Holley's web site.