For anybody interested in a camshaft for your CB650. I just got off the phone with web cam and they can do a performance regrind on your stock cam. If you want to get really wild they can hard weld your stock cam (add more material to it) and go even further.
The regrind is $140 and the hard weld was like $350. Due to the summer coming up the wait right now for a regrind is about five weeks. Im going to send them a old 650 cam I have so they can do it and just run my stock cam for untill I get it back.