I just put a Takegawa rev box on my stock fifty engine. I want to put stiffer valve springs to prevent valve float and possibly a cam with bit more lift.. I see that Hondaminitrails sells a Kitaco spring kit and also a few different cams. Im pretty much set on the springs from Kitaco, but kinda confused on the difference between their Performance HRC cam (and is it really a HRC part) and the kitaco touring cam for stock head. Any suggestions/recommendations are greatly appreciated. Thank you.