Torsion bars

Of coarse, these cars were under sprung when new.I have used new .890 bars in a 340 dart and the handling was still oozy.
At rest the torsion bars are under the same load and i always wondered how weak bars could provide better front end lift? A friend campaigns an 1968 8 second Hemi 'Cuda and says stiff torsion bars are his preference?