Are you on win 7 SP1?
You need SP1 installed to get better scores, something to do with AVX (I think its called). Either way its a component only added in SP1.
Sp1 will presumably stress further, and I wouldn't call 2 IBT runs stable, try 20. I know its a long drawn out process but its better to get it out the way now, then later down the line if/when your machine starts to crash.
what motherboard are you using?
Everything looks fine, with the exeption of your voltage, its set to manual - auto, it needs to be either manual - manual or offset - manual to gain control of the voltage settings.
Are there no settings for LLC/Phase/Duty/CPU Compat.?
That setup is slightly difference to the p8z68 bios, not by allot though.
Come watch me overclock my new system