Well, I have some old Camelback, fuelie, double hump, camel hump, whatever you want to call them, heads. 186 castings so they have the acc bolt holes and are 64 cc chambers and have ALL the machine work done to them except I haven't ported them. I am far away but I have some. There might be someone here that might buy them though, however they are the type to say they will buy and keep you waiting on some action/money for a year.