The engine has not been overheating, but runs like it did before I changed out the COP's and plugs. It started doing that after the engine warms up, which makes some sense. I am the guy that threw his #3 plug, and I thought it was related to that, but I may have yanked a wire when the cop popped out. I am in the process of cleaning the throttle body right now, so I will check that when I finish. Thanks again, guys.