everyone is saying shove, which I tend to lean toward also, but your own read on the CO suggests he is a tight solid player. range of hands then would be, AA-JJ, AK, AQ. I think, due to the size of the raise as pointed out by Frankster (not necessarily too HUGE of a raise,but big enough where AA or KK would possibly scare action away), i would put him on AK and push.