Well I took it on a little road trip to test it again since Mark's shop really wasn't that far away. After about 15 minutes, the temps climbed and the CEL came on. So I turned on the heater, CEL went away, and we drove probably another 45 minutes with the heater on and it worked fine. If we turned the heater off, the temps would climb again. I am going to be installing a vent in the hood, just over the exhaust manifold. Hopefully that will help to expel a lot of the heat in that area, and help out my situation a little. It'll look similar to this, but I'm only doing the big one in the center, not 2 of them like they did here
