it is obvious from your question that you are a novice.This plane is not for the novice flyer even with both engines running.It has a high wing loading due to it's small size and will land real hot.losing an engine will make things even worse.raidentech is calling for .12 size engines and looking at the specs I would say even 10's would work.you should look for an engine that uses a two needle carb so that the idle mixture can be adjusted properly.you shouls also read about twin p-38's in the twin forum.the worse thing a rookie can do is overpower their first twin.good luck