Actually, the reason I started looking into this is that I'm not satisfied with the ride quality I'm experiencing with the black '70 'Cuda. The rear suspension is still too harsh on the bigger bumps in the road.

I'm currently running two right side 3300 bs Super Stock springs with AFCO double adjustable shocks. I have these exact same springs on my '68 A-Body with Koni's, and they ride like a dream.

I just ordered a set of +2 ESPO HD springs, which are longer than what I have in there now. I tried the mono leaf Caltracs setup, but they were even harsher than the SS springs I'm running. If these don't do the trick, I'm going to order a custom set from Landrum springs. After that, I'll just live with it if I can't smooth out the ride.

All these suspension setups work well on smooth roads that move the suspension less than an inch or so, but any bumps that are larger than that really transmit into the car harshly. Its pretty brutal on most roads that aren't virtually smooth.

As for the lightweight, high horsepower ride, I have that covered with a 200hp, 535pound '06 Hayabusa that is bored, stroked and ported. I refer to that one as the real Rapid Transit System..