Lewair

Hey guys, I have just had a GI275 installed in my 182. It is my primary AH only. I have not got Synthetic terrain, engine readouts etc . Does anybody know how to line up the wings to the horizon bar. My installation needs a slight adjustment just like any steam driven one did with the adjustment knob but on the 275, I really am struggling to adjust it for my seating position. I have no database installed yet, do I need one? Its only an artificial horizon !! Thanks