First thing I did is charge the battery overnight and took it in for a load test. It tested 100% even though it is 5 years old. Next I also fully charged the battery from my 73 Charger and tried it too. It sure looked like the starter was the problem so I had that gone through. No change.

As I mentioned it feels like it has an ignition problem like timing is very advanced. It turns over slowly and stars most of the time if my foot is on the gas. It runs fine after that.

I'll put the scan tool on it tomorrow. Fingers crossed.