I don't have any experience with your CPU but you've got a really good air cooler if not the best air cooler. I would test it and see how far you can go. I would recommend keeping the temps under 70C. That's just what I'm comfortable with. I believe that CPU can go all the way up to 90C before throttling itself. Overclock your CPU and use Prime95 to test for stability and monitor temps with RealTemp or CoreTemp.