Hey john,
Interesting comment regarding Reds and (not) having a 'welder'.
I just purchased a 'Reds' tube header , at the Pomona Swap Meet' , a couple weeks ago.
The young man that I bought the header from, had apparently tried to run this header and gave up. I bought the fairly unused header cheap, as the guy knew that he had problems, but didn't know and/or want to say what the problem was.
I looked the header over, and noticed that 'someone/welder had welded all four pipes ....a quarter inch out of the backside...where mated to block

!
I took the header home and used grinder and belt sander to flatten and fit to block. Nice piece of equipment ...now. Oh , and I ground and took off the little Reds Header plate that was attached, since I now was the 'maker', eh