Quote:
Originally Posted by beatr911
Use a new copper core plug. Yup, less resistance than even iridium, just won't last 50,000 miles - but who cares? Widen the gap at .050" increments until you detect a miss at high RPM and 100% throttle, then close the gap .050. That is your ideal plug gap. This works on nearly all I.C.E.s really.
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What are your thoughts about bumping up the heat range over the stock plug because of low RPM and light load operation?
The stock heat range factors in a wide range of conditions, including extended high RPM running, to ensure safe maximum temperatures. Consistently running much lower RPMs and loads should put the temps much lower than optimum with the stock heat range - you'd think.