I have a FPE 2.4 on mine, and it has more power than you can possibly use. I only have about a gallon of fuel through it, so it's still set very rich, but I can do any verticle maneuver without exceeding 1/2 throttle. I did have to put 6 inch wheels on it give enough clearance for a 20 X 10 prop. I just received the tall TNT landing gear, so I am hoping that gives enough clearance for 22 X 8 prop.