I have a set of 1970 340 exhaust manifolds that back in the day were ground smoothe and chromed! I want to try to restore them and use on my T/A to replace the Hooker's and return the engine bay back to more stock looking. My question is how to get rid of the chrome and is there a way to restore the rough cast look? Replacing the manifolds is way to pricey. I have seen $500 and $600 at a recent swap meet for a pair!