Sport Jett .46 vs OS .46FX?
Yes-- but idle and transition depends on how good you can dial it in. I promise you with this engine on this plane and a 9/7 or 9/8apc, you will have your hands full. You may also want to consider Kavan wheels.
*They are made of a hard plastic and they enable you to slide the plane sideways without wheel hop when the end up the runway comes up to fast. I have them on all my planes to include the big mustangs.
In a way it is kind of funny, usually the more powerful engines are a maintenance nightmare but this so user friendly its scary. Nothing difficult about it. Looks and adjust like any other basic 46engine.
You go through all the engine stuff around here and there is controversy on them all except the Jett brand.