Okay, so I've been fiddling for a few days with my new Q6600 and Asus x48 Rampage Formula.
So far, the highest I've been able to achieve is 3.48 (433x8) with the vcore auto-defaulting to 1.37v.
Question 1 I know Asus tends to overvolt their stuff, so is 1.37 high? CPU temperatures barely...