I found H 11 4 down by the starter and figure the engine was built Aug 11, 1954. The 54 stuff was already changed to 12 volt, so I kept it. I had one of the old Pertronix units when I had the 53 frame under it maybe 20 years ago. It worked fine. Thanks to you guys for all the help.
Jimbar, retired Navy Chief Any more of us out there?