Jay (or others) something I have always wondered, how important is setting the gap when you put the new plugs in. I always do it out of habit but how perfect does it have to be to noticeably effect performance. I know others who don't bother and seem to get along fine.
Well actually, my good ol' reliable 4.0 ltr inline 6 seems to work best when I avoid fancy plugs and stick with your basic Champion model and it comes preset at a 'correct for me' .035 so I don't have to touch them. But I still wonder how much difference a tenth of a millimeter can make.
