If your using the stock plugs, is it okay to use the round gapping tool? Is it also okay to use a small amount of anti-seizing compound (silicone-silver based) on the threads of the spark plugs?
I changed out my old splugs and wires after 11,000 miles and roughly 12 1/4 mile track runs. The plugs had normal wear and were still gapped at 0.050. My new stock plugs are set at 0.044 (I used the round gapping tool, the one that has set settings on the edges of a circular tool) and a new set of 7.5mm Mopar performance wires. So far, I haven't noticed any unusual behavior of my car.
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