Thanks for the reply. After the suggestion on the forum I gave some down thrust over the engine and felt on the take of a need of some up elevator as it was dipping a bit. I guess since its my first Gaint scale and the first fully made up kit I will test fly it few more weeks and with a experinced aerobat to perfect trim and setup my plane.

The Incidence is surely a problem, I am sure as visualy looking at the fuse it is not really perfectlly leveled where the wing incidence is 0 degrees. So let see.