Hehe, you have BCLK but no CPU multi, i have CPU mutli but no BCLK ( http://valid.canardpc.com/show_oc.php?id=867462 )
My i5 661 seemed to be wall around 210 BCLK, no matter the temperature/volts/mainboard or anything. Moreover, the behaviour was like a Lynnfield, which means -90/-100 CB and 1.55-1.6v, more was not good...