ok looks like you don't want to cooperate ..no additional info ,here is what you stand on as far as i can tell the difference CPU/GPU temp is right
you have enough RAD space for what you running at your clock..
water~50C way to high __A/W delta 23C__
your flow is bad ,less flow -water will heat up
now, before you start buying new rads,open up your blocks clean them,clean your RADs
drop 140MM to the bottom of the case /let the 360 bread some air(that 140 is like 30FPI)
apply MX-2 on CPU block,install all your components except one ..your pump/res
spend some money on good fans and get yourself new pump
P.S. next time when you have bad temps with your set up ..start the thread "what's wrong with my temps"
good luck CIA
look at the temps (water) herehttp://martinsliquidlab.org/2011/05/09/i7-2600k-cpu-xspc-rasa/5/