Originally posted by rskoncepts
So you mean inside the sleeve so there is slight gap between the piston and the sleeve below the exhaust port?
Yes you are right. On my P/S sets I have realy big tapering below exhaust port.
My P/S sets were use in Ft. Myers and you can check with Stefan abiout performance, he was the one of the racers who used. He loved it so much and reserved more from me.