I have a lsvtec and it is overheating. I flushed out the rad and it didnt over heat until I drove up a bridge. I took the thermostat out and ran the car with ac to see if it would run hot. It didnt from light to light but on a long stretch it started to creep up. I have a stock radiator. Could that be a problem? Oh ! what head gasket are you to use ? I cant rember which one I have I have to check!