Nice RM, I had a 265 kit that the guy put in my previous RM and it sucked, it had no bottom end, I could not figure out what the deal was, had not bottom end at all, it ran perfect, was jetted perfect, powervalves were right.
Who did your 265 kit, and YEAH I put a hot rod crank in that bike, thru my dad's shop plus getting a extra deal cause we owned shop I rebuilt that bike, hot rod crank, main brg kit, complete gasket kit, Niks Pro x piston for $220 now thats a cheap rebuild!
I would like to do something like that or a 280 kit, just scared it will do what the last bike I had did.