ORIGINAL: Justflying1
Question 4-I would have it flush or protruding out a little. I would not have it protruding in.
Actually... on #4... the tip of the pipe should be inside the fuse a little, if you don't have a bypass. The reason for that is... the air coming out of the pipe will have a light venturi effect, and it will help draw cool air though the fuse, and keep heat in check.