Originally Posted by Summiteer 
It kind of looks like no-one is really sure that it works......or that it doesn't....in a four stroke.
Well we could always have a "head notchin" party, break out the ol angle grinder and giver a try on that thar unit of yours Summiteer
I think at one time K-Lynn Kenny told me a story about him or his brothers doing this on their machines for considerable hp gains. I think they called it diamond cutting or something. I really didn't pay too much attention to the story as I thought he was blowing hot air up my arzz
I guess there's a bit of truth behind every story.
