Captinjohn
A brillelli 25gt engine will work wonders on that plane. The Brillelli 25GT engine weighs just 3lbs 9oz with magneto and under 3lbs w/ei. This engine will spin an APC 17x6 prop at 8800RPM and give you 14lbs of thrust. It weigh's 2oz less than a G26 and give you the same power. Here is a video with the engine being test with a APC 17x6 prop and you can see the rpm readings.
http://media.putfile.com/Brillelli-2...ngine-Test-Run
I have this engine on a Great Planes Giant Big Stick and see fly's great. I'll be testing an APC 18x8 prop tomorrow and I am hoping to get around 16lbs of thrust with it. If it does that will be amazing for a little engine of this size and price range.
Thanks