Ok, I will lighten up, didn't see they were bowl ported, just the exhaust. It is nice that they are new/unused. But, I figured full intake port work and whatever it took modification wise to get the current pedestals in shape to be used. I figured around 800 to 1200. But if it will take substantially less then that??? then ok.

At a possible 240 CFM as Dwayne suggests is possible, that's around 500 HP on a decent setup. Even more with a Really hot/high comp setup. Don't know what your intended application is yet, or did I miss that too.