Just figured i'd give it a shot, we've got this model A with a '53 caddy v8 init and we're trying to double check on the wiring since we dont have any diagrams available, if anyone knows that would be great thankyou!
Most likely just 2 wires. Battery cable and small wire from ign. sw. start terminal or push buttom. If you have 2 small terminals one wire will be connected to + side of coil. That terminal if used is normally marked with a R near the terminal.