with the above post. may not have a problem. some temp rise (100) is normal in climbing hills. i believe you have some big ones in Hawaii.

also, I am not sure how successfully one can boil out one of these modern radiators. I am thinking that the tubes are pretty thin and you will end up recoring and or buying a new rad if it is bad.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.