My Nova has a fever. The coolant has been boiling and going into the overflow tank. I just changed my radiator cap from a 13 lb cap to a 16 lb cap. I was wondering if that could have been the problem. Also I was wondering how much of an advantage it would be to have an electric water pump and fan as parts of my cooling system. Also was wondering what aluminum radiator would be and where I can find one that isn't too pricey. Thanks for the help.