I tend to go for the later 2 bolt type but use the crab type cap. I use an "ignition amplifier" kit and do away with the condenser.
The length of the nose on the cam will dictate whether the distributor will bolt on directly or an adaptor will be needed.
Ignore the ignition amplifier bit. It's a kit I use that Charlie might not be familiar with. Just go with a condenser.
I will need adapter for the 46-48 style. That doesn’t concern me. I just don’t know if the 37-41 is inferior to the later one or harder to work on. I did not know I could put a crab cap on the 46-48 style. Mart I’m curious about that amplifier you mentioned. Thanks everyone for your input.
The helmet is as good as the crab, and is waterproof, while the crab is not.
The 11A advance disc (11A stamped on the tang) is superior to the 68.