74 Dart - Very stiff ride - Help

Have a 74 Dart Sport 360 with KYB Gas-Adjust shocks and it rides very hard to me. Feels like a race car...which on nice flat roads is good. But the roads here are crap and it's beating me and the car to death.

Previous owner redid the front end with all new components and tubular control arms. I don't know what all he used other than the control arms and KYB's.

What can I do to soften it up a bit? The front end looks fairly high as far as the torsion bars go.

Any help greatly appreciated.

Brian