Dean, I have been living your life daily. I got AN figured out as well with the 16s thing. But building a Cobra with Smith's guages, I also threw British Pipe thread into the mix. My head still hurts. The Aeroquip guy in town is going to send me a Season's Greeting card and I didn't set foot in there until Sept.

P.S. Pegasus Racing has some real oddball adaptors.