Paul,
Hello.
Yes, I raced 350 in Japan (Fuji, Tsukuba, Okayama T.I circuit) till 2007 season.
Ray from Ireland came to Fuji speedway to see my race in 2007.
It was my good memory.
I'm racing 50cc & 90cc now and 350 is still in my garage but will race again in future.
I put pictures on my photo album.
The spec. is as follows,
Original frame with reinforced tube, Racing CDI, Ceriani 35mm Old GP forks, Ohlins rear shocks,
racing cowl from Kawasaki A1R, Racing expansion chambers, F&R 18 inch flanged rim and tyre, Ceriani 210mm front brake
Cylinder porting (slightly) , 28mm Keihin PWK, etc...
Thank you,
Kotaro