Many cam grinders will regrind vintage cores. I have used many such cams in the last 40 years. Crane has done a Flat head mopar cam for a wooden boat for me with wonderful results. That was probably 20 years ago although every time i see the guy who maintains the boat he tells me how nice it works. I have had 331 Hemi cams customm reground, Poly cams and some experimental cams made as well. Even some very severe service cams for special applications that we arent free to discuss.
NOW you will get a couple of hundred experts telling you that it is a bad idea and how the cam must be welded or bult up and how that will ruin the core (All of which is pure bunk because of a total lack of understanding how cams are made and ground or reground) so brace yourself. Grinders who service the tractor puller industry are a good source. I use Canadian Chrome Crankshaft in Toronto for my specialty expeimental grinds as he has a good cam lobe library. Comp cams also offers that service and Lunati used to. Schneider used to do it too I think.
I believe one year the Buick straight eight had a four barrel I think if I remember rightly it was the first application of the WCFB Carter carb. I think it says so in the Carter carb book.
Would it be cool?
Absolutely awesome i think and I arent even a GN fan. Is see a car in this month Rod and Custom, a 28 highboy owned by John and Nancy Burke I think it was. It was with a hopped up Desota flathead. Looks so cool!
I bet it works nice too and sounds great!
D