70 340 left side exhaust gasket. Was repro but no one doing it anymore.
I would bet the tools to do these still exists.
So IMO this one would be a no brainer
The company was in the Detroit area and still exists. Owners name was Tom,
Steve Atwell im sure knows who it is
A long shot but,
If someone can put me in contact I might by the dies or cad files for them if they exist. Might also consider having the dies made but would need a perfect example to work from. Then the question is what are people willing to pay for them?