Dodge demon identification assistance

I'd bet the holes in the firewall were welded up. One possibility is it was originally a heater delete car. If the glove box door has a plastic bezel on the lower part then it's a Rally dash door. All the glove box doors of that era resemble that, with the stamped circles in them - think 'cup holders'..Pull that homemade piece of aluminum off and look at the size of the opening for the dash bezel - better yet post more pics here. Might be a Rally dash frame. A 72 would not have come with a Rally dash. Probably just an old bracket car from back in the day.