dont know what to tell ya, i have a cam, and headers, and e-fans, i run mine all day long, in traffic, it was like 96 out the other day, and never even went past the normal operating temp. i would definately check to see what your coolant level is like, maybe try flushing the system with a hose.

I have to work on my heater core, its getting down to the 50's at night and im going to need heat when the snow hits.