those e3s are a waste, go with motorcraft. check make sure all wires are in correct location... make sure you didnt crack any spark plugs.... make sure all wires are fully on.
yeah motorcraft or good ole autolite copper core plugs seem to run the best. if you think about it electricity always takes the shortest route so unless your plug is gapped perfectly at all three points then its going to spark off the closest point.
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