Help evaluating this car...69 DART

That's too nice an old Mopar to cut. Personally, I wouldn't put anything but a Mopar power train in it. But it's your choice. There'll be derision in some camps, acceptance in others. The long and short is you'll be racing it. Hope it all works out for you. I'm currently putting together a '72 Demon. It came to me with a Ford 9" rear end, leaf springs and shackles and a '68 383 b block under the hood. I sold the rear end/suspension, kept and rebuilt the 383...as my Dad used to say "there's no accounting for taste said the man that kissed the cow"...goes double for our car projects.