So let me know if I have gotten this wrong. AR103's are the recomended plug gapped to .55-.6, .55 for longevity and .6 for a bit extra power. So my question is if I gap them to .55 how long should I expect them to last? I saw 20K somewhere in here but I didn't see if that was the AR's or A103's.
Roush performance intake, Exedy 12.5 lb flywheel, Massive 76A lower engine mount... more to come with more money.