...Thanks hemi71x for the click on. In it I noticed the book MAXIMUM PERFORMANCE by Jim Schild, so I pulled that off my self and took a quick glance. I see to things to add to this thread. One is on page 70 lower left corner, a freshly painted Russell Funk's 65 WO1, with a square flanged exhaust hanging down. And the other I'll chime in later on, it may seem like a but I'm not. I love digging for facts.