There’s much debate about the correct location for the static port. I have read that Torrance has disconnected it at the back of the dash. So they are using cabin pressure. But I read at some altitudes cabin pressure can be wrong. Factory says to put them in front of the cabin air intakes. But I read that people say that is also inaccurate. The only place that I have any feedback on that apparently returns an accurate pressure is from Evan and he says that is halfway back the tail. And my Cirrus also had the ports in that location. So out comes the drill and in goes the port. Of course I am missing the stock ports because they never came in my package from sling. So I bought my own ports from Aircraft Spruce and they actually bolt in from the inside, which I like that installation method better anyway. Drilling a hole into my quick build fuselage was very stressful. I did apply a very little RTV to the back side of the port before I screwed it in. I also used locktite on the bolt. It came out great.