To give you an idea about the later valve timing, Thunderbike was thinking of not offering their pipes for the 865 because they made so little difference in performance. There was a very long thread about that including some charts of their results working with that engine. As best I can remember, the intake timing was not changed much, but the exhaust valves close something like 3 or 4 degrees before TDC. On the bright side though, that valve timing is ideal for turbocharging.
