Well I just finished flushing and filling. I wasn't quite sure where the bleeder screw was so I burped the system instead. When you squeeze the upper radiator hose are you supposed to just continuously hold it, or are you supposed to squeeze and let go, squeeze and let go, and on and on and on? Another thing the radiator only took in 2 quarts of coolant. I had mixed about 70/30 antfrizeeze/water. In a 2 quart bottle, which means the other 2 quarts that must have been in system already was just plain water. Should I drain a little of it out and just put antifreeze in there to get more of a 50/50 mix or do you think I'm ok?