With points, there is an additional small terminal on the ford solenoid or the R terminal on the GM starter mounted solenoid that you connect to the + side of the ignition coil with 14 gauge wire to bypass the resistor during cranking. On most GM's there is a resistor wire, not a ballast resistor. On a points era GM starter, it will have 2 small terminals, marked R and S. The solenoid that is mounted on a GM starter pulls the starter pinion gear into engagement with the flywheel, as well as making the electrical contact for the starter, So it probably draws a bit more current than the ford solenoid. So connect that S terminal to the big stud that receives power from the battery (via the ford solenoid in this case) with a 12-14 gauge jumper wire.