Now that the tube issue is sorted, I went to routing the tube down the firewall and out the bottom with a piece of AL tubing as an extension. I was sure that my angle cut (or baloney cut for the old school guys) was the preferred method of terminating the section of AL tubing. What I wasn’t sure about is how far the end should extend below the exhaust tunnel. I asked Jim Harden and he said just put it below the tunnel level and if possible make it adjustable. So I made the tube long enough so I could play with the position once it was flying. I didn’t drill a “whistle hole” yet. I’ll put in the hope once I am happy with the final position.
