I felt sure that I'd sent you (SSTNT) a link to my Folding stats page, output from HFM..?
Currently working on a 6701 SMP WU that should drop in ~3 hours for 6k+ points.
I haven't changed anything relating to volts etc, just changed the multiplier (previously) to 21 and the other doofrey (clocks??) to 180, making it 3.78 GHz as it stands.
I have no idea of what to do regarding the volts, or RAM timings, so I haven't touched them.
Then guess you are doing 3.78Ghz at stock volts, which is great! You'll probably have to bump up your VCore to go higher. Pretty sure 21 is as high as you can go on multiplier. For 4Ghz, you'll have to get up to 191mhz.