56 SEEMED high but who am I to argue, I'm pretty new to all the dyno stuff. I'm not. 56 is way too high. A stock YZF450 comes in about 45. You would have to do a lot to get 11hp more out of it. Also, are you using a street tire when dynoing or the stock knobby? You'll never get good numbers with a knobby due to tire slippage on the drum. Where are you picking up your RPM from? It matters with a CDI. Also, without the correction factors, the results are useless since they don't take into account humidity, barometric pressure or other things that affect the results. In looking at your graph, I see another problem. From 7000 on up the line is erratic. That usually indicates either an electrical problem (spark breaking up) or a fuel problem (too lean). Whatver you true numbers are, that part of your RPM range is useless since the engine is obviously not running right. After years of testing motorcycle products I have come to one conclusion: dynos can lie, if you want them to.