Distributor Information

There is a guy on the internet selling NOS Chrysler slant six distributors that were designed for what he claims is “industrial, boat, airplane” units with no vacuum advance..
Part number-
2098218IBR-4202

does anyone know if this unit is a mechanical advance distributor?
If so, is the advance curve compatible with automotive use?
If not, can the advance curve be easily corrected for automotive applications.

I come from the high performance Volkswagen community and the first modification to help performance is to ditch the vacuum advance distributor for a Bosch 010 or 009 mechanical advance distributor.

any advice would be greatly appreciated.