Don't go with high compression, the gains are minimal! Unless you ride at high elevations (above 2k feet) where you are already at a downset because of lower oxygen/air pressure levels. I had porting done by Eric Gorr (more power everywhere type), and I already had +2mm Wiseco kit. The bike rips! (89 200 BTW). It's running a little down right now b/c the jetting is off a bit and the pipe is smashed up, but it's still VERY fast.
So in my opinion, there are much more effective ways to get mo' power that will end up costing much less in the long run...say, 3 or 4 tanks of gas! Such as reeds, pipe, porting, etc. etc....Good luck. :thumb: