[sirio11]

We're assuming you just called the flop. So you still have about 20x left. Pot is about 6.5x, so this depends of course on how much he bets in the flop, if he bets 3-4x, you can raise to 8-10x and fold if reraised. If he bets the pot maybe the best play here is just to call, and prepare to fold the turn if he bets again. The problem with the leading bet in the flop, it's that he can raise you with anything, so you don't have enough information to fold. Maybe open-betting something like 6-8x in the flop makes the trick, but then you lose the chance to win some chips of his continuation bet when you're ahead, and in a terrible spot when just called.