[soah]

You can be nearly certain he has AA here. Normally I wouldn't call that much to play for set value, but the fact that you can pretty much put your opponent on an exact hand as opposed to just a range of hands helps out a lot (not to mention being in position). You don't have to worry about draws, you can get away from set over set, and you can presumably steal the pot if you get a really scary flop (QQx) and you don't screw up and make it look like a bluff.