Over powered yes, but probably not as bad as it sounds! On a hot day here in the Denver area, the density altitute can easily be over 7,500 '. So while the wing loading will be higher with the big engine, the power to weight ratio should be close to that of a good running YS .91. Throttle management will be in order but if she blows I'll be the last one to blame anybody but myself!

Report to follow.

Rob