I THINK IT'S UPGRADE TIME WITH THE COMBO YOU HAVE.
Ok, this kinda sounds like you blew a head gasket....check the oil and tell us what it looks like. Also what kind of radiator are you running now? And your car has a stock electric fan right? I also bought a Autozone "Heavy Duty" one (I was in a bind)and it worked great, and I never had any problems with it, I was pretty impressed. It was $149.