Well I got the numbers for the timing figured out, I think I did it right.

Intake port is open 116 degrees of timing.

Exhaust port is open 134 degrees of timing.

Transfer ports open for 85 degrees of timing.

with a 16X8 APC prop I get 7200 RPM (CDI), compared to my Evolution 26, Same prop gets 7800 RPM.

I'll se what kind of increase I get with the new Frank Bowman ring.