Can someone help? I need to drive my dart tomorrow

67Dart273,
I appreciate that your method of checking for voltage drop is safer and more direct. However, Shawn has alread tested with the engine running. We know the VR IGN is not seeing Alternator output voltage, or Battery Voltage. See post 31,
He now needs to find out where the resistance is.
(also, please see post 29, Alternator output voltage is following RPM - the field is getting power all the time)

Killer6,
Yes it is worth checking for ground. However there is voltage drop between the Alternator's output and the Voltage Regulator's Input (aka Ign). See post 31
The ammeter has nothing to do with that. Furthermore, Shawn presumable has bypassed the ammeter either by joining the ring terminals or by doing as Redfish posted.

Shaun,
You've got to tells us where the pertronix ecu is pulling power. Without that, we don't have a full understanding of the power distribution with the key on.

edit: corrected spelling :)