That's too bad, They are a great looking header. I wonder if he had a shop that fabricated them for him? I had some steering box clearance issues with mine but otherwise the headers were very well made.
Bummer. I see Dave about once a week. He built my engine (see photo). Dave made all his headers himself, but he had another guy do the welding for him. He said that guy now no longer welds because of his eyes. Dave had a few headers left that I tried on my chassis, but they were not the right configuration. I did not know this was one of his - I'll show him the photo this week to confirm that I am SOL. Dave no longer has the time to do headers. He is still active and builds engines, and he is planning to race his blown-flathead roadster again at Bonneville this summer.