have a 1993 acura legend... it went to the shop cause we believed it had a blown head gasket...the car had an over heating problem... the car had been sitting because of this problem.. it had been driven hot, it needs some machine work on the heads... which was done... the car was gone through and put back together.... heads pressure tested, block pressure tested, cooling system pressure tested all checked out ok.. but the car over heats.... fans work... no coolant leaks.... ANY IDEAS please help.