Yes, you must install the tanks in reverse direction and reverse clunk. In other words, your tank is mounted front side back and your clunk has to also be reversed or looped around to front of the tank (which is now facing the rear of the plane). Sorry for the confusion on this, I can send you a diagram if you need one, it's quite simple.


and yes, with the new rebuild the engine, the Tower engine is great, plenty of power for the size plane/prop.