Smoking Vents?

[Rosco]

Alright, i got out of work early today so i had a couple hours to fool around with everything, but will be testing it all tomorrow. The car actually overheated on me going to a car show saturday, empty radiator, blah blah. So anyways, I bypassed the heater core, installed a new t-stat and gasket. Well i noticed the gasket wasn't doing much consider i was getting a pretty even flow of water out of the housing on the bottom. So i kept the gasket on there and used some sealant. Im going to wait until tomorrow to let it cure before i test that out. Im pretty sure this should take care of all the little leaks i seemed to be getting. I also noticed before that the heater core, or evaporator drain was pouring out some liquid when the car was off. The last thing, I haven't changed the radiator cap yet, i'm not sure what lbs to go with. The one that was on it i just noticed today is a 16lb cap. Im thinking it should be alot lower, maybe in the 6-10 range? Any ideas on that?