Each plug was gapped to .035 for the supercharged application. Before we called the install a wrap, we changed the oil, oil filter, and then replaced them with Quaker State Q-power full-synthetic 5W-50 oil and a Fram Tough Guard oil filter. Running on the dyno, on old oil, is not a smart idea.
2001 Ford F-150 Dyno Tune - Headrush