anyone hear of 440source.com?

I would use Brandon's rods again in a heartbeat. Just assume they are going to need work. They are still a good price even after the extras for a good part. Muscle Motors builds some great stuff. I havent seen the CNC 906s yet but it surprises me they can do it on a factory produced head (core shift being what it was). But unless there is a rule saying to run them, I wouldn't run iron on something this big. The FAST racers that run them might have better info on the heads. But talking to them about the engines can be like asking a Stock Eliminator guy what cam he uses...