Eric Crippa 250 HVA porting

Hello Guys.. can't remember if I saw it here ..or on Friends Of HVA FB site.. anyway.. I saw some time back a diagram of the Eric Crippa porting for a 250 .. probably around 75/76 when he was with KH.. anyone have a copy of that diagram.. shows what to do to the inlet / exhaust and transfers.. along with the piston windows..

I never seen that article,but I do have KH cylinder.In fact if you look closely at Mikkola's 1976 250 world championship bike you will see this exact cylinder.It has mutable transfer ports with bouyson tunnels in the intake.You can find pics of Ken's later 250 with these Mikkola hand me down cylinders on it.I tried to contact Eric about this cylinder.If anyone can put me in contact, would be appreciated.