Concerning the two wires to your coil:
One is the ignition wire. It runs through a ballast resistor to reduce the voltage to the coil. This extends the life of the points.
The other wire is the start wire. It sends a full 12 V to the coil when your switch is in the start position.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.