Billium I believe you done gone past overkill. The uproar is a 3-d style plane. with that engine you probably will end up tearing the airframe apart. I would suggest using a smaller engine. And Webra engines are kinda on the hot side anyway. If you must use this engine go with the biggest diameter and lowest pitch prop you can. I have not used one of those engines. So exact sizes I will not pontificate on. But check your owners papers. There should be a good starting point. Just keep the pitch down so as to not over speed it.

Mark Shuman