which is also in a post you linked to. I put the plugs in because I wanted to see what kind of results there were with using them. I figured if it was so good with detonation, for $18 in plugs I'd give it a spin to see. But I wasn't expecting it to idle funky. I dunno, perhaps it is something else causing the rougher idle. I'll have to drive around on them for a bit more and see.