Help with overclocking / ram timings

ok i originally thought overclocking was just about changing the FSB but i was so Wrong im really confused about all the the ram times so need some help, i have a EVGA 650i Ultra mobo and as its a 6xx mobo i assumed it would be easy ''after reading the reviews lol'' so anyhelp will be appreciated, or a how to do it guide or something. cheers allSpecs - e6300 @ Stock2gig corsair ram 667mhzCorsair 520w PSUEVGA 650i Ultra mobocheers allHelp with overclocking / ram timings
This is for C2D's.