KK is 3bet allin to CB

[jackatwork]

I think this is a standard, but high variance spot to stick your money in on. Without having pokerstove at the office, my gut feeling is that overall you're going to be right around a coinflip with his range, which is going to include a lot of draws. You're getting a good enough overlay to go for it. I would have 3bet bigger preflop though, don't give odds to call with a small pair for set value.