Thanks for the replies men. I had suggested the extra head and base gaskets to him but he felt it would either effect power too much or not reduce compression enought to make a difference. As far as tapping the head, the first thing out of my mouth was the likelyhood of hitting a water jacket, but he still thinks it can be done. I told him before he buys a new bike and makes an expensive paper weight with his drill press, I'd try to get some answers for him. I'll pass on everyones advice and let "Dr. Frankenstein" make his own decision :eek:
Darryl