Best comfortable suspension for cruising

[455T/Akid]

what's the best most comfortable riding suspension out there? I'm looking for a suspension that will turn my car into a totallly crisp handling car. It's a '79 T/A..I've heard of AirRide Technologies but I wanna know what you guys think from all your different experiences. I hate how I can feel every bump I go over on the road, I want a suspension that rides where I dont have to worry about going over a bump at 40 mph instead of having to slow down every time I do. Where I can drive down a bumpy road and barely feel a thing.. It is an F-Body