I want to add these maps to show you the possiabilites with differant cdi boxes yet the same amount of total timing at peak rpm.
If you look at most single cylinder 250-500cc motors in atv's they normally peak around the 8500 rpm mark.
Obviously some are less and other are more and that does not mean they do not rev more but 8500 is usually very close to the peak and the rest is over-rev.
So all these curves meet at 8500 from this while on the dyno you can decide by adjusting the stator plate or changing to another CDI to add or take away timing before and after to create a wider powerband.
Basicly any year CDI, TRX or CR can be adjusted on the dyno at peak rpm to make the exact same HP, but by changing the curve you can build power before and after peak.