Thanks guys, guess I’ll just be a guinea pig and try to
get the mag mounted and see what happens.

I was also wondering about a "spark plug" for the Wisconsin.
It takes a 1/2" pipe thread. They’re still available for
Maytags and Model T’s, but not sure if it matters what
I get. I also see advertised 1/2" NPT to 14 mm thread
conversion pipe fittings for sale. That’s an option,
but I still wouldn’t know what heat range.
Thoughts?