I don't feel like I've reached the limits of the v1 yet, and might not ever... and that's just on 70ccs. 90 seems like its gotta be unreal, but once you gear out all the way, what else is there to do? 13 front is as big as it gets.
Minarellis suck ass, the engine's fall apart once a week and never really run right. Puchs are definitely better engines.