I just added a coolant overflow tank from a 71 Skylark to my 69 Skylark 350 2 bbl. These hot summer days in NJ have caused my radiator to spit a couple of drops of coolant out of the overflow tube every once in a while. Which radiator cap will be correct. From what I understand, a 15 pound cap would be correct but I have not seen any out there. Is there a cap specifically for a coolant recovery system. Thanks.
