re: 60 MPH...achieveable? Who cares?!? Let blueprint an engine!
This has been an interesting thread. I can't see why it would be impossible to meet Jim's goal. It's indeed a challenge but it seems to me the expertise is there, the tools are there and the determination is there. Everything needed to make a great shot at 60 in the quarter is in Jim's hands. Even if it falls short it will be a fine effort in the tradition of motorheads everywhere. Personally I think it will be achieved.
Goldwing 1500, Silverwing 600, Schwinn 49