[phelan]

I'm having trouble trying to view the dyno from my windows phone but did you rev up to 4000 RPM? We have a dynojet dyno for motorcycles here at my work and depending on tune and exhaust, it is quite common to see a drop in power at certain RPM, then see the power come back up. This is commonly caused by reversion, most affected by the design of the exhaust. On Harleys and Buells, reversion is almost always present around 2800 to 3300 RPM when a 2-1 exhaust is used. My Buell in particular has a very noticeable drop at those RPM.

I'm curious what kind of power one of these motors would make if someone welded up the combustion chambers into a bathtub shape and used flat top pistons to match, to achieve a 10:1 CR and utilize a hefty squish band. Though it would be hard to design and set squish considering there is only one size of head gasket that I know, if you can find it at that.