OP you did not tell us much. Is this a slant/ v8, what? Originally such?
"Let's say" it is or was a slant..... just a blue sky example. This means the torsion bars are tiny noodles So ONE simple cheap upgrade is to simply find the heaviest (largest) v8 T bars you can find.
As said above---get a helper and find out what's loose
Go to MyMopar and download yourself a shop manual. You may or may not have to satisfy yourself with a Dart manual instead of Plymouth, etc. READ the front end/ steering related sections