Guys I actually dremeled a "bowl" in the middle of the mount so my crankcase on my TH 75 would sit down in it and used the stock mounts.I didnt want to raise the motor because i didnt want to take a chance on the carb being higher than the pick up/tank.I also didnt want to raise the motor because I didnt want any unwanted prop wash over the horizontal/elevator.I did however uncover the mounts and saturate the heck out them with thin CA as well as the "bowl I dremeled.I have flown the crap out of mine,slow speed,high speed,inverted,high alpha on landings,knife edge,precision rolls(slow and point) and mine goes EXACTLY where I point it.The motor has never given me any trouble as far as going lean or rich in any position.Hope this helps!!