66 Dart GT HT Whatsitgonnabe?

I could try tagging @krazykuda and see if he shows up.

Did you ring???

I would do a compression test on it. do it dry, then wet with a couple squirts of oil in each cylinder and see if the numbers get any better. Then go from there...

Did you have a pressure gauge on it? What kind of oil pressure did it have when you had it running?