I've batlled my fair share of overheating issues but this summer I've ran into an overheating issue that has me pretty much stumped. The car at this point has a new high flow water pump, new alumnin 3 core radiator, dual ford contour electric fans, new thermostat and cap, new hoses, system has been pressure and block tested. I also changed the the headgaskets anyway as a precaution. The car drives and idles @ 200 all day without the ac on. As soon as I turn it on she climbs and doesn't look like its going to stop (i usually turn it off once it gets to the R in NORMAL). The only thing I can think is happening is the condensor is dumping all the heat to the front of the radiator making it harder for fans to cool it. The ac blows cold (I actually re-did the ac with freeze 12 about 6 months ago with new dryer and o-rings on the system). Any ideas would be appreciated, I feel the issue is realted to the ac in someway as I pretty much changed everything cooling related prior.