Well maybe i'll go and try having it rodded out and cleaned really good. I got in contact through a local hot rod club with a guy that is really good. I'm also going to put a filter on the top coolant line going into the rad because I heard that the ford blocks are notorious for producing some rust in the coolant jackets and then depositing it in the radiator.
have your radiator guy re-position the inlet tube to the drivers side of the tank. The coolant will have significantly more room to cool before going back into your block. I did this on my stock 3 row ford radiator and it cooled an extra 20 degrees on a hot day. Well worth the 50 bucks in labor and saved me $ over buying an alum unit!