Intermittent Ignition Issue [66 Valiant /6]

Just for clarity, let's repeat, STARTER RELAY. You have THREE terminals if a stick shift, FOUR terminals if an automatic. The smaller ones are "push on" or flag terminals. Those are small, and booted/ insulated. Only the large stud, and the one beside it, the big square screw terminal, are bare. Those two are what you jump.

In this photo, "B" (battery) and "S" (solenoid)

mopar-starter-relay.jpeg