has anyone had better o/c results with Q6600 G0 on a newer bios than 0603?

also what ram/fsb rsults have you gotten with 400 strap to n/b which 0603 lacks i believe, correct me if im wrong.

also in regards to 1006 bios n/b voltage options is there 1.5v or still 1.55v?

currently on 0603 with no problems:
(ram PLVL 1)