need advice: 440 in a Duster

URDUST73
What rear is in the car now? I would think with the 318, if it's original, it should have an 8 3/4 already.
You can use power steering if you want to, I did on my Dart, But it seemed like overkill.
My demon has manual steering and a spool in the back. That car would be tough to park. But it is a strip only car, and works just fine for that.