Pure Theory Question

[David Sklansky]

You are playing heads up no limit holdem. No ante. No blinds. Your opponent moves in $1000 in the dark. This is the one and only hand. You will call him with all hands that are favored. Except that he now makes an offer to you. He will expose his cards if you pay him something. You get to look at your cards before you make him an offer.

Hopefully you see that it is worth giving him something with any hand exept AA or 32. My question is what two cards would be in your hand that would pay the most for his exposure.