One suggestion is to fill the radiator with water and then loosen the bleed bolt on top of the T-stat housing (or, if you don't have a bleed bolt then loosen the hose that happens to be the highest one in relationship to the ground). Then take a cooling system pressure tester and attach it to the radiator fill neck and pump up some pressure. The pressure will push out a lot of the air that is in the system and expedite the bleeding process.

mike