Power-to weight-wise, the Fuji AND the G-62 are dogs. The Fuji weighs 5.7 pounds by itself and costs $779 and doesn't have electronic ignition and will not deliver near the power of a ZDZ or 3W 80. The Fuji has 7.5hp @8500RPM, while the 3W has 8.1hp and tons of torque, and only weighs 5.05 pounds (I believe that includes the weight of the ignition). It only costs $675.You can get the 3W at:
http://cactusaviation.com/Products/E...80/engine.html
The ZDZ Super80 weighs about as much as the 3w when you add the weight of the ignition, but is notorious for being an absolute powerhouse at 9.5hp! It costs $775 and you can get it at:
http://troybuiltmodels.com/EngZDZ.htm
If you are willing to spend that $1200, then don't waste it on a BME 105 (I don't even know if they still make it). Go for their new 115. It is the same price, but over a pound lighter than the 3W or ZDZ, and has WAY more power!
I don't know what plane you are talking about, but is that the claimed all-up weight by the manufacturer and is it designed around an 80cc class engine? A typical 80cc plane will have around 1650 square inches of wing area and would weigh around 15-17 pounds without the engine, muffler, ignition&battery, prop or spinner. Once you add all that stuff, you usually end up at around 21-24 pounds.
I have said it before and will say it again - power-to-weight is only one factor of a good-flying 3D plane! Equally important is the wingloading - on a typical 80cc class airframe, you should have no more than a 31 ounce wingloading for killer 3D, and anything higher than 32 on a plane in this class is just a glorified warbird, IMO!