500ci street ride, what head to use?

I`m leaning toward building a 500 or 512 stroker engine for use on the street. I`m currently running a 440-6 w/a set of 906`s ,88cc that are bowl blended and gasket matched. I`d like to keep the valvetrain I`ve got which is the 2.14/1.81 valves w/dual springs w/damper, and a solid cam with roller rockers in their standard positions. What would be the best choice for an aluminum head that I can swap out my valvetrain with, and satisfy the hunger of 500 cubic inches? I`d prefer not to have to mortgage the house either! Thanks