+1 :tup: (assuming the wiring is stock).JD, if you look closely (ignore the writing) you will see the RED pertronix module wire going before the use of the ballast resistor, in a FORD, that would be under the dash technically... That's likely why it seems confusing to you. All Fords of the 60's & 70's need a separate power for the pertronix Red wire. in order for the pertronix to properly function as an on off switch. With a full 12V it's more sensitive to the magnetic pulse and gives a stronger on off signal to the coil.
Run the red to 12V Key ON and Key in Crank (ensure this wire does NOT get 12V in the ACC position.
Run the red with blue stripe to the coil + like it was before...