i just had a 302 out of a 1976 f100 rebuilt the bottom pro done i got the head from a guy who had them re built they had never been ran these are ho heads. took it for the first test drive today and its over heating and blowing oil out the dip stick and the filler hole in the valve cover. can somebody tell me what problem mite be the heads had been setting awhile the motor seems to run good . there no water in the oil or anything i think the gaskits are ok. i am lost with it. appreciate any help.