I call him most of the time, but he's been pretty busy lately, so I just emailed him cause Im in no rush on it . He's already emailed me back the info I wanted, think I'm just going to put new valves in the stock head and do a p&p. As for the cam chain it just barely has more slack in it than before & a buddy of mine showed me a trick to modify my tensioner to get more use out of it. If it works ok for now if not time for some serious upgrades!!!