?s about my CUV266, new to O/C.

I am running my P1.2 gig at the default corevolt of 7.5 and it is at 1270-my DDR DIMM clock is at 338 and my temps are about 40-42 idle and stable. Is this the best it'll ever do until I am able to cool it further? And I am doing this with the jumper-free mode w/ the CPU speed set on manual, where can I change the "2-2-3-5" or what ever it is, or is it doing it for me? thanks.