Where should I stop betting?

[GTSamIAm]

This is from a live tourney last night. Blinds are 100/200. I have about 4000. I don't remember how much anyone else has except the button who I have covered by about 1500.

UTG folds to me. I'm dealt AJo. The two players to the left of me have been tight and passive. The person on the button is a friend of mine who can be a true maniac or can play loose/passive. He has been known to tighten up occasionally too. He's dynamic, but he's not a strong player. The blinds are generally pretty tight.

I raise to 600, button cold calls, blinds fold.
Flop is A83 rainbow. I bet 400, button raises to 1000, I call.
Turn is Q of clubs, there was already one club. I bet 700, he calls.
River is 6 of clubs, three on the board. Button has about 1500 left. I bet 700 as a stopper bet, he calls.

What's a better plan after I'm raised on the flop?

[mosuavea]

I think you have to bet more on the flop, but I am not a tourney player really.

You would be better off in the MultiTable tourney forum