1965 HIPO 273 intake manafolds.. Any good upgrades??

Back inthe days according to the magazines etc Chrysler recommended toadd the Carter 3856S carburator.From the beginning it was for the 383/414 engines. If you wanted more power a Offenhauser 2x4 dual plane with 2xCarter from 1956 Plymouth or 1957 Chrylser I think.