Hmm, let's call this a marginal 87o hand

[dano]

I like the preflop limp. SB and BB are unlikely to raise, and you are getting great implied odds with the BB and maniac in the hand with you. Also you have great position. I don't like a raise much, because I don't want to play 87o HU against a guy who likes to bluff and spew. Just limp in take advantage of seeing the flop cheaply and using your position. I don't think you should raise your weak drawing type hands against these players in this position.

I think you should just peel the flop. Your equity is never very good here, and you aren't going to fold any draws by raising. By calling the flop, you can get away cheaply on the turn when behind, or use your position to get value or protect if you improve. Also if your opponents are observant, you will not be representing a K or set here, assuming you would raise any K or pocket 7's or 5's preflop.