Cranks but only fires in run

[Terry Hauck]

69 Roadrunner with orange box ignition. Turn the key, and it cranks but won't fire till I let the key spring back to the run position. The ballast checks good at 1.5 ohms. After it starts, it runs great.

 

[69hemibeep]

There are two run positions on the switch, the one while using the starter isn't working. Chase that circuit.