Would like some PST recommendations

Hey James,

I'm doing a street build of a 71 Dart Swinger and need some suspension recommendations. This is a street only car but I would like to vastly improve the handling characteristics. Here's some info on the build

1971 Dodge Dart
431 CID Small Block (340 Block)
904 Automatic Trans
8 3/4 rear
Manual Steering
Disks on Front & Rear
Manual Brakes
110#/inch leaf springs lowered 1"
Spring Hangers 1/2" offset in
Stock tabbed LCA's reinforced
Stock style disk brake Upper Control Arms and balljoints

So I'm thinking I'll still need,

Larger Torsion Bars
Front Sway Bar
Rear Sway Bar
Street Shocks

What would you recommend for my project?

Regards,
Steve