Super post flop maniac.

[corsakh]

I have this guy at my table who is like 45/11/20 over 150 hands.

20 is the AF. He's got a decent run of cards too.

I am in position to him.

Any particular advice?

[SCBielski]

Try to take lots of flops with him by limping when he limps and calling his preflop raises, if they are not too large, with hidden hands (such as 9T, J8, 79, suited if possible). If he is really a big time maniac post flop, implied odds will pay you off every time you hit anything decent against him. When you do hit give him some rope and set a trap or checkraise him, whichever. Flop it, holla.