Question about EDELBROCK RPM heads

Ok, so basicly with N/A engine best bang for the buck would be closed chamber heads with thicker gasket and possibly shaving the piston a bit?
But if I want put a vortech blower or a turbo on it some day? Will the closed chamber still work??

Yes. use the right parts, set the distance with the gasket.
Chances are it will "work". But will have too much static compression. If you want a boosted engine, build another one for boost. Otherwise build this one for boost and live with whatever it ends up with until you have the other parts.