Drew:
Thanks :).. This is definitely a situation where I'm "breaking trail" so to speak. I've seem pictures of two instances where people have done what I'm doing as far as the manifold is concerned. One happened probably 45 years ago, the other I don't know, likely more recent but I can't find the person involved with that. So, I'm on my own, with the collective knowledge of this group. Every bit helps!
Thanks again:
Paul...aka Xerxes
