If you were further north, a conversion to 12 volts would make a lot more sense. Since you don't have to contend with starting in sub-zero temps like some of our Canuck buddies, or the guys in Alaska, all you really need to do is use big cables, keep the connections clean and tight, and keep the engine tuned up. I ran a 47 Mercury with an 11:1 compression flathead V-8 on 6 volts for 13 years, and as long as I did my homework, it was very reliable. There's no reason a stovebolt with half that much compression shouldn't work OK.
Jerry
