Adjustable on the rebound is really handy on a drag car, no reason it won't work the same on the street... Does the literature that came with the shocks say what the valving is? Now that the Plymouth is almost done I'm starting to think on some suspension for the 'maro.... But I've taken so much weight off the car and put a lot of setback on the engine so I'm going to need some big numbers valve on the down side and either adjustable or a split valve on the rebound.... Curious what QA is building these days....The price on them is certainly a lot better then the AFCO's I keep thinking I'm going to need......