Wow! That looks like an untouched granny car. I'm surprised it doesn't have the belt moldings on the tops of the doors and around the back edges of the fenders and hood. Looks like it has all the other stuff that would go with that. Probably has AC too. I'd be tempted to just make the numbers matching 318 into a 390 stroker. You'd better look up under the back of it to see what rearend....lol. Don't be surprised if it has a 7 1/4. Was it Hemi Orange or Vitamin C? Cool car to fix just the way you want it.