Unless I am missing something those instructions say for a .15 (2.5cc) to break in on a 9x4 then use anything between a 7x4 and 9x6.
As I stated before I do not race so I feel no need to get up on the peak of the power curve. I have no experience in the 22K range. I will bow to you and your friend's experience and expertise.
George
George
I'm not so sure that Recycled's experiences will necessarily be first hand and is much more likely to be a recycled quote of someone else's!
