flyinblind,I've got a 20 oz. in mine,but I'm using a 108 FSR OS for power and I did not want to be cut short on flight time.Never used a two stroke that big and have'nt run the OS yet,but I think I can count on that sucker doing in some fuel.I was going to be covering a week or so ago,but am bashing the upper wing for alierons.
Bill