ngk tr55 gap question...
06-02-2009, 11:28 AM
#1
ngk tr55 gap question... cant find a clear answer on this. what should i gap my tr55s at, i have jet hot lts, ory, cai, 160*, msd wires, other bolt ons, etc. etc... some people are saying stock gap, and some are saying the ngks like a slightly tighter gap.
