I have just installed a new wing onto my Spad. When i fly fast the AC wants to dive and when I slow it up it wants to climb (hands off, as I slow down the plane will loop itself slowly). My C. of G. is slightly forward. I am pretty sure the thrust line and the horizontal stab. are along the same axis (or at least parallel). The wing looks good (no twists, warps or wash-out) and is semi symmetrical with a little more camber on the top than the bottom. As for my angle of incidence, well I think that is where the problem may lie. I do know that there is at least 2 deg. positive angle of incidence, but I have no means of accurately measuring it.

Can anyone help?