What radiator?

Looking for some suggestions guys on what radiator to use for my 73 Duster. Will be running 414 stroker, 4speed, with no p/s, a/c, etc. Car won't be a daily driver, but more likely a weekend cruiser etc. Would you spring for an aluminum and forget about it, or see how an OEM does? BTW summer in Mississippi = 95 - 100 deg. days.