Hi I changed the water pump and the two vertatherms . I notice the one on the stb side was melted or at least the plastic holder. I was told that the head gasket could be blown.. I checked the compression on all 4 cyn and found that they are all 130 and up. Should there be exhaust coming out of the thermstat housings..??because it is.. Or do I have blown the head gaskets? I have notice air in my pee-er abnd now the
