Torsion bars for better handling; your experience?

You will like the Vikings. I have them in front and Billstein in back with Firm feel -1 drop leafs. I just adjusted the shocks from a stiffer ride to more soft and over did it. Going down the highway at 80 thought I was going to fly in the air. Never left the ground but it bounced up and down not rough but real smooth. I went back to more firm.