Thread: Holley 4150 HELP needed fast......
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Old 05-07-2013, 09:05 PM
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Sieg Sieg is offline
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Fresh gaskets on the new spacer?

How did you set the base timing?

3 changes - spacer, ignition, fuel fittings.......ignition would be my primary suspect, vacuum leak from spacer second.

Is the ignition properly grounded by MSD standards?
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