This is just my opinion but I think the motor rule should stay about the same (done think adding c.c. to the Hondas will help) with the exception of the c.c.rule for the newer motors New rule should be what ever a stock 650 comes from the factory so people dont have to spend a fortune on custom made rods,cranks,piston etc.basically buy a stock motor figure out how to mount it in car ,make it direct drive and go race ,also not a big fan of electronic fuel injection on these cars but hey if thats what it takes to advance the sport than what the heck ,I guess what I would like to see is a set of rule that are well thought out with rules that can be and will be enforced that don't make the older motors obsolete