1966 Dart torsion bar info needed

New to the torsion set up , does the same theory hold true for torsion bars like with coil springs in that 6 cyl bars are better suited for drag racing versus the V8 ones to aid with car lift etc ???

Just curious I just obtained a 66 Dart that was an original 273
automatic car and im building my for Super Stock racing so I need proper weight distribution etc please educate me thanks Chris .