ok, just to make things clear as i was saying i "continually added fluid when it overheated" that was because it was puking it out the overflow not leaking.i have checked for leaks.none. i checked the oil. no milk. i check the tail pipe for excess water coming out.none. there is no thermostat to stop the flow of water. so riddle me this... i hooked a hose to drain plug on the thermostat housing and ran it to a jug of water. topped off the system, turned the plug so it would start draining and release air.started the car and ran it at around 2000 rpm, putting more water in the reservior as needed.the hose continually ran coolant and air bubbles, and sometimes just a small shot of steam before turning back to coolant and air bubbles. then after the car got up to normal heat when the fans start kicking off and on there is only steam coming out of the hose hooked to the drain plug on the thermostat housing, and thats when the water in the reservior started to back up and bubbling out. could it be a clogged heater core make it do this as i took off the bottom and top hoseson the radiator and water runs right through it so it aint clogged, and when i was trying to drain off the air there was plenty of water running through as when i revved up the engine the water would come out faster so i am guessing it aint the water pump.all hoses are also new????