I wish the guy that was machining my head would have had one or two less beers. I just put my head on my GP that I had RK Tek cut a new chamber in and the holes for the head studs are off to the left. Man I wish I would have set it on a cylinder before I welded it and sent it up to get cut. I lived by the ATK Fac. in Utah and Ron Griewe that wrote that artical would tell me storys about going to maico fac. That is Rons boy Don on the bike, he was very fast in the day.