I believe the RT Magnum head to be one of the very best production small block heads ever made by Mopar and with a little work a 202 intake and minor porting they will run real close to a as cast Edelbrock or pro Comp style head.
Was the R/T a production head? If it's the one I'm thinking about, it was the head on the 380hp Magnum crate engine. The R/T truck heads were no different than any other Magnum production head.