I used to have a Dazzler. You would be hard pressed to get a .75 on it. a 12 inch prop is about max for the Dazzler with the stock gear. The stock motor mount with the kit will not fit a .75 either. I used and OS .50 SX in mine and I had all the power I needed for hovering and balistic virtical performance. That engine no longer being available leaves you with the OS .55AX at most for this plane. You will likely be disapointed by the lack of 3D capability in this plane as it is really just a sport plane. A very fun sport plane though. Mine eventually sucummed to a stress crack in the fuse near where the wing passed through it. That area where the fuselage gets thin is supporting the weight of your engine and a few hard landings will result in a stress fracture that eventually ripped open in flight on mine due to engine torque. I now believe I would have been better off just ussing a .46 in the plane with an 11 inch prop and it would likely still be flyable today.