That acrid interior odor many old Mopars have is primarily caused by two things, Butyrate plastic components, and the jute under the carpeting.

Aside from replacing that stuff with something else, or leaving your windows down all the time to allow the smells to dissipate they are released (so they don't build up inside your car) no, there's not much you can do other than mask it with another smell (air fresheners etc.).