hi guys and gals. customer just brought in a 1965 k10 with some electrical gremlins he needs worked out. inline 6 with a 3 on the tree. looks to be mostly original, with a rough primer paint. any way I started to do some looking and he put In a new battery when he bought it(first trip is to my shop), it's a 12volt. got looking a few things and it looks to me like it's a 6volt system. also has a alt. and when running has 14volts to the regulator. looking for some clarification. the coil system and starter look to be 6volt. TIA
daren