408 Build- Guess the HP/TQ (Dyno Results in 3 weeks)

My guess is going to be around 440 hp and 510 torque but we'll see. I went with a bit more of an aggressive cam then the last one they built.
Unported Edelbrock heads flow around 245cfm, should easily support 480hp. That cam has decent lift, I think your estimate might be a little low. Either way it will put a smile on your face when you stand on it, I know mine sure does.