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Old 01-19-2013, 08:36 AM
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The HEI and others like MSD have more than enough voltage to jump .080. Problem is;as the plug wears,and other resistances go up,the wires develop leaks. The spark can jump to the V/Cs,headers or inside the cap.When the leak is really bad its easy to find. Stock HEI cap runs out of voltage after 5k,if your engine revs then you will need an external coil.
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