RE: Yellow A/C Spitfire Retracts and engine.
Hi Guys; I have seen a Yellow Spitfire fly at the Bay of Quinte Jet Rally with a Saito 300 twin. It sounded awesome !
This model was built & flown by Bob Fiorenzi (spelling ?)
Have you considered the Revolution 52 ? It has loads of power and a longer shaft so it would fit back farther in the cowl than most gas engines. It is also smaller in size than large finned engines.
Good luck.