Torsion Bar Replacement

I appreciate the advice. When I called PST they said that the 1.03 bars were rated for a 440 or 426 Hemi and though they would provide better handling would create a very stiff ride for my 225/6 Samp street car. They went on to say that it might be better to change the sway bar and strut rod bushings. I do want a nice ride as well and trust your advice more so than PST as we drive similar cars. All things considered what size bars should I use for my 225/6 street cat with a/c?