As the fall approaches, those of us in the northern part of the country need all the heat we can get, and as little of the outside air as possible. I have installed the "boots around the push tubes" in my rv8 but still have quite of bit of air coming in around the wing spar (or someplace else, but appearing in the front hole of the wing carry through and the small holes in the channel boxes above the spar. Anyone found any great places to tackle or good methods to keep out the cold air?
