I'm really not seeing the reason to avoid the stock rockers if budget limits get in the way and the cam lift is not too high. The one thing is the durability with heavy springs as mentioned, but that happens on all heads with stock rockers and too much spring & RPM's. And yes, it compromises the lift a bit, but so do the 273 rockers to some extent, and it does not effect the main benefits of the Edelbrocks: higher CR, better flow all over, and the detonation fighting characteristics of AL heads vs iron.