Matching Torsion Bars, Leaf Springs and Shock Absorbers

I have been happy using KYB Gas-a-just shocks all around for 30-odd years on both stock and modified A-bodies. For a softer ride use Monroe Sensatrac. For higher performance builds use Bilstein or Koni, but you have to do a little homework to source these. Don't sweat it — it's not rocket science. But I would not use NOS shocks — the seals would probably not hold up after all these years.