sb tuning problems

I think if U are around 20* initial and 35* total it is good. .043" gap is good (1.1mm) mike got a little confused on ngk heat, probably only runs ngk in his jap dirt bike like me, but 6 is 1 step too cold! cruising a lot 1500-3000 do not go bigger cam. here ngk is not worth the extra $, I run autolite and champion