Problem finding electrical short

Hey 67Dart273,
I have unplugged everything I can from the harness, all the switches, courtesy lamps, headlamp harness, rear tail light harness, console harness in an effort to remove as many possibilities of the short cause as I can . When I touch the ring terminal from the red wire going to the fusable link on the bulkhead connector(engine side) to the starter solenoid post I get a very small arc.
I really appreciate your input. Thanks!!

Let me get this clear..........

New dash harness and you have most everything disconnected under the dash?

Is the cluster connected?
Ignition switch?
etc? What else?

And obviously you have the bulkhead connector connected

Can you wire a test lamp or maybe a tail lamp in series with the fuse link? How bright does it glow? If none, but a smaller wattage 12V test lamp in there. Any glow? If the lamps don't glow very bright take your meter CAREFULLY set it up for current and measure how much current is actually flowing

Post a photo of your meter or at least the brand / model we should be able to help you with that if needed