Anybody use EngineQuest cylinder heads?

The rockers I was running were the stock magnum stuff. Until you try it don't doubt it. I was not trying to gain performance by changing to edelbrocks, the reason I switched was because I had problems with the valve guides on the iron rams and it smoked. I was told that the edelbrocks would not perform any better than those heads but I was tired of messing around and putting more money into iron heads so I just bought the eddeys and summit brand roller rockers mostly to save weight on that heavy old 74 duster. I was surprised by the performance gain myself. You might be surprised LXguy! I'm not running in the 11's but I'm running in Wyoming and Colorado 5000 feet of altitude. Mine is mid 12's here.