thanks for the insight..no i am using two electric fans off of a toggle switch..pusher/puller.
actually i think i have had a blown hg for awhile which was causing my heating problems..
i tore the heafds down,and i only found some very tiny pitting on one exhaust valve seat...
everything else was pretty good.
my head gaskets were not graphite by the way so i also think they never had seated ever.