With their short travel, coilovers and air shocks will never come close to the ride of a new car! Most coil-overs rated for Street Rods and Hot Rods have 3" of travel, not enough range in their to get any effective shock valving to make for a good ride... As for handling, coilovers will do ok, but add a good sway bar both front and rear sized correctly for the weight of the car and attachment point on the suspension and all of a sudden it'll handle like a slot car! Add in some 5" or 6" travel coilovers and dual adjustable shocks then you'll actually have enough shock travel for the tuning knobs to actually do some good!