I will say this once, Dyno's are for people who are not smart enough to build and tune an engine. We, only dynoed this last rebuild for shit and giggles. FYI, what out by eye tunning, or numbers that we used from the top of our heads, were right on the money and didn't need to be changed to increase the max output of the motor as it was right on the money. There is probally only about a small handfull of guys that put together a motor and have it right on the nose without have to change anything.