Looking for a HP estimate...

[Chevelle454]

I am in the process of finishing my motor up. I did a total engine rebuild in school, and I was wondering what kind of horsepower I will be getting. It is a '72 350 with hypereutectic pistons, moly rings, CraneCam 266, and stock rebuilt heads. For now I will just be using the stock intake, exhaust and 2 bbl carb. What do you guys think the horsepower will be for this motor? And what would you estimate it to be with a Holley 770 street avenger carb, street avenger intake, hooker headers, and true dual exhaust with flowmaster 40 series mufflers? You probably have no idea and wonder what I'm smoking for even asking, but I'll try anyway...