very true , also make sure u dont have a bad case of banana cam, make sure sure your cam bearing journals are within spec, if not it’ll just pull the head up again, u amy need to have the cam journals line honed and repaired, also metal head gaskets have a tendancy to seep oil and coolant out of the motor on occasion , what ive found is a nice layer of brush on avaiaion gasket sealer on either side of the hg is the toughest stuff u can get to put on that works to stop seepage … done it numerous times works perfect