>>391966669
I don't have much experience with overclock on anything other than samsung b-die (it is expensive though), I think you should be able to push to 3600 at least.
Cmd2T should go to 1T too. 
Dunno if you would be able to push the timings down much to be honest. 

Go into BIOS and just set the frequency to 3600 without touching timings for now and see if the system will post (it should), but in case it doesn't pull out the CMOS battery, power cord, and press the power button, that should reset the BIOS. 

>>391967416
>but I heard it would it better to run looser timings at 3600MHz
Not really. In my own testing, impact on performance was pretty similar.