I am looking into Laniers Ulitmate Pitts and I have a Gas 42cc engine with EI. The engine weighs in at 4lbs 3oz including all electonics. The plane is rated to handle up to a 2.2 cu in gas engine. I believe mine is a 2.5 cu in. My engine swings an APC 18x6 prop at 8600 RPM. The plane has a wing spam of 60 1/4 " and a wing aera of 1110 sq in and should weigh around 14 lbs when completed. I was wondering if anyone has built this plane with a gas engine of this size and how well it flow.