That's the combo I have, though I haven't had the chance to fly it yet. The Saito .91 fits great in the cowl, but as Capt_Kc said, you have to put it right at the end of the mount. I also had to replace the upper left motor mount bolt with a countersink head screw to keep the carb from hitting the bolt. Mine balances at about 5" back with the battery under the tank and the rudder servo mounted just behind the cockpit and using pull pull. Weighs about 5lbs, 12oz. Should be a blast.....