Torsion bars for better handling; your experience?

you guys are in a much more advanced league than me,but here's what i did and found.
My changes were .920 torsion bars, Bilstein shocks and expo 6 leaf rear springs with the
stock sway bar,disc brakes and 70 series tires...sm blk '69 Dart.
the car has a much more modern feel, is firmer and the ride is nice on good roads. The
problem is that most of our roads are not good and the ride is harsh and uncomfortable
because of them.I am going to do some more experimenting.My new vehicles including my truck,ride,handle
and stop on these same roads with exceptional comfort...i think i am just spoiled.