200 mph will not happen with this design. Radar guns are notoriusly unreliable. Odd to take an aerobatic design with a thick wing and try to force very high speed out of it. The record setting designs will have no more than a 9-10% section. Speed is more about reducing drag than increasing power. Maybe build the wing with a moder pylon section Selig 6060 or something. Then you will have a fighting chance.