EEK! Not the jet 7 thats for sure. Its decent, but its more looks than performance. If youre looking for GOOD cooling, I recommend the Thermalright SLK series heatsinks. Slap a decent fan on em (they accept 60mm, 80mm or 92mm) and they perform quite well.
Thats my exact processor model and I can keep my temps at 42 MAX (with 92mm tornado).