Man that makes so much sense it makes me abit mad that I did not get the proper counsel from my builder at the start of the engine build. Don't get me wrong, I love my builder. He is awesome with the care of the bike and dealing with people. But I wish he tide it all together for me the way you describe your decision process when you get ready to do a build. Makes soooo much sense. He tells me the comp is at 10:1 so it looks like the 570 is the cam for me. Thank you very much.
we`re VERY leary of "off the shelf" porting.if your builder/porter dosnt ask the questions about expectations & riding style,ide find another builder/porter."one fits all" porting is a crap shoot at best,this goes for any port work on aftermaket heads too