I believe the kit was designed for that range yes.
The debate on me using a small block for this build will rage on till the test flight I am sure. [>:]
As I get closer to finishing I will be better able to determine the total flying weight and that will help make my choice of engine.
.90 would make it speed monster for sure but I would like to see the plane fly on its own ability and not be over powered.
IMO

cheers