I was on the list to get one of these engines. I went to his shop and looked at this prototype, at the time he was having parts made at a foundry but it burnt to the ground with all of his molds. I still have some of the parts that he gave me while I was there. The valves and pistons are really cool, he even made little spark plugs that actually work. The amount of work that went into the engine is incredible, the fuel, oil, water and electrical systems are all functional. It was absolutely amazing to see this thing run, it had a nice stable idle and sounded incredible when he wound it up!