Boys,boys...
Me thinks we are getting far from the simple question originally asked. I know I helped start it but the highly technical argument is probably misaimed at our thread starter.
I think we all agree that if he wants a plane that doesn't climb excessively when power is added he has chosen the wrong design. We are not sure of the airworthyness of this scratchbuilt. If he wanted a plane that won't climb under power he could:
*change the CG
*use a symetrical airfoil
or
*add incidence to the rear stab
all good ideas and most likely helpful to the original thread starter