Now I'm overclocking it to 4.1Ghz and I'm getting 39C idle temp, 70C load temp.
Not with a V8, your not, unless your computer is in a refrigerator. Post a screen shot running Prime95 for 10 minutes w/Realtemp or Coretemp open.
@sleepking, you can try to remove your heat sink, clean it and apply new TIM. This may help a little, but not much. You can also try to manually set your vcore lower, lower voltage=lower temps. Both of these will bring you only small gains though, you do really need to get a decent aftermarket heatsink to see any real difference.