torsion bar suggestions for 318 Duster
The smallest drag racing bars will hook the best but may not provided the stiffness for the street. The 318 bars should be fine. Slant 6 bars are nomally thicker than the drag race bars.
My buddy, here, the Ledgend, has a all steel 69 Dart with /6 cooling and T-bars. I think he said he clicked off a 1.42 60ft time on the OE bars.
Good enuff for ya?