Or else it won't be called "tuned".

Yep, Someone explained to me the tuned had a more advance timed crankshaft but from what I have seen they are nearly identical. But Novarossi is changing specs from time to time and not telling us so I can not say something about the 2010 models and even from what I have seen is for sure not for all 2009 models delevered.

In simple words, the Flash is fast and the flash Tuned is faster, it is set for more RPM. If it is noticeable for an avarage racer or if he can setup the gearing and the rest of the car for getting it out of the tuned version is another question.