$2/5 NL - AKo on Button

[LetYouDown]

$2/5 NL game at Casino Niagara. $100 min/$300 max. I have roughly $800 and cover everyone except a guy who folded preflop.

I'm on the button with A-K offsuit. UTG+1 limps, MP1 limps, cutoff limps, I raise to $25. UTG+1 calls. Everyone else folds. Pot is ~$67. Flop: A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img]. He checks to me, I bet $60. He pushes all in quickly and announces it relatively loudly for another ~$110. Villain hasn't done anything crazy...pretty passive. I don't think he's raised preflop a single time, but he does a lot of limping. Other than that, no reads. Call/fold?