Sorry to re-live an old thread!
I was wondering the same thing.
I have the Antec920 cooler installed, but feel that I could get better temps - I'm hitting 92c (under 12hrs of P95) on my i7 3770k @ 4.5ghz OC'ed
I got some old Arctic MX-2 laying around, and was thinking of removing the antec, re-applying the paste, and putting the antec back on (stock paste still there)
Is that at all recommended?
I simply want to put paste, as I feel the spread isn't good:
http://cdn.overclock.net/9/98/98b94e3d_59.jpeg
http://cdn.overclock.net/e/ef/ef6291f1_60.jpeg