I own four McCoy 35s and they all have the piston baffle on the "wrong" side of the engine, i.e. the baffle is closer to the exhaust port and the offset plug is also closer to the exhaust port (due to the slot in the head matching the baffle). Is this standard? I have yet to use these engines. Any tips and quips would be appreciated.

I also own a McCoy 40 stunt engine in pieces, therefore I have no reference as to where the baffle is. Are the 40s the same as the 35s, in other words is the McCoy 40 piston baffle also closer to the exhaust port?

George Aldrich swore by the McCoy 40, so I would love to get this thing running. If George liked them they must have something going for them.