W2s are a great head, and if you are lucky enough to still have an old set of NORRIS rockers then you have a very solid top end for your latemodel, or street stock IMCA gm eater. I would love to have a W2 headed mopar in my buddys current street stock IMCA dirt car, but we dont have enough spare parts laying around for that unforseen failure, so he is just gonna run the GM that is supplied with the car.