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Re: Engine Misfire & Stumble
"under half throttle it is stumbling and a few more backfires I am thinking the HEI ignition module is going out again. I go through one about every 2 years due to the older style of charging system which can give out voltage surges."
You sure that does not have something to do with it. Seems like its time to chase down the voltage regulator delete button and clean that ignition system up some. Also check your grounds.
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