I have used 6 volt coils on 12 volts with the resister but it is better to use a12 volt coil designed for use with the resister. If the resistance in the windings are not correct it may burn the points or cause a weak spark. If you have it all from the 57 it will be great.

George

They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum