Pot odds v Implied odds

[DoctorWard]

You are heads up at the end of a $10+$1 single table tourney. You have $7,000 in chips and your opponent has $8,000. The blinds are $300-$600 and you are the big blind with your opponent on the button. He's first to act and raises it to twice the big blind, or $1,200. You look down at your cards and you have 6s-9s you flat call the raise to see what the flop brings. The flop comes 8c-Ks-7s you're first to act and you bet the minimum, $600. Your opponent raises to the pot-size pre-flop, $2,400. At best you put your opponent on top pair but given previous play he's probably got a pocket pair and hit a set on the flop. What do you do ~ Call, Fold, or Raise (if Raise by how much)?