[chris vickery]

My .02 worth, observations on 6 volt systems.
-6v batteries are tempermental and require a good charge. They need to be maintained carefully monitoring acid and charge level
-6v batteries require proper, clean grounds. Even a battery sitting for a few months can signifigantly discharge and cause corrosion at the ground points
-6v batteries can be changed out for...8v batteries-enough extra umph without having to change over your system to 12v, many tractor guys do this
-6v is NFG in cold weather
-battery failure is very common and also aggravating as most guys think its something else
-Ford flathead distributors and coils are also very prone to issues especially due to overheating (thermal breakdown) and out of time. There is only one remedy for these issues- buy a newly made original type coil and time your dizzy on a timing fixture using the instructional book. I recall one guy whose carrier would start to misfire after several minutes running, then recover and start again after cooling down. He swore it was something else- it was a bad coil pure and simple
-6v starter will go for a really long time on 12v, there are many ways to incorporate a 12v battery into the 6v system and still look original without the headaches