I have a 1961 Chris-Craft SeaSkiff 32' with a pair of fresh water-cooled small block chevy motors. The Boat is currently in southern Lake Huron and as far as I know has always been in fresh water. I am thinking about taking it to the Florida Keys for it’s new permanent residence. I have installed 14...

Mallory makes breakerless distributor for marine applications. Ebay, Jegs Mail Order, or perhaps directly from Mallory. I have been running two of them for 10 years.
They also make magneto systems (no battery power required) but that is an expensive way to go.

Jack