Torsion bar size effect

I would venture s guess hat the 1.090 bars will be all together too stiff for a street car. I am running the .890 bars with a 1 1/8" sway bar and XHD springs on the back of my 68 Barracuda with KYB gas-a-just shocks. This gives a firm ride, stopped the bottoming in the front and the car handles like a modern car.