Yes, I put a lot of the heat sink compound on the back. I have not added a heat sink as i have not experienced any issues even in 90 degrees. Right now I am running without a hood, not sure if that makes a difference. I may have to look further before Mopars in the Park. That will be the longest drive thus far and will have a hood and snorkel scoop on. It does have full air flow from the fan too though.
