top pair against unknown, line check, Party $400

[billyjex]

Is my line ok here? Should I be betting these turns? Villian hadn't caught my eye. To be hoenst, I don't know how he got $178 added to his stack and I don't datamine these games.

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Hero ($762.12)
MP ($578)
Button ($791.50)
SB ($267.10)
BB ($221.10)

Preflop: Hero is UTG with Q/images/graemlins/spade.gif, A/images/graemlins/heart.gif. SB posts a blind of $2.
<font color="#CC3333">Hero raises to $16</font>, MP calls $16, <font color="#666666">1 fold</font>, SB (poster) calls $14, <font color="#666666">1 fold</font>.

Flop: ($52) 4/images/graemlins/heart.gif, J/images/graemlins/diamond.gif, A/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $45</font>, MP calls $45, SB folds.

Turn: ($142) 5/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP bets $90</font>, Hero calls $90.

River: ($322) K/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP bets $175</font>, Hero calls $175.

Final Pot: $672

[Macquarie]

This hand looks tough to me. Leading the turn looks like it will fold out virtually all hands that you beat.
Check/calling on the other hand could get expensive. In the actual hand you got lucky in that villain made only modest bets on the turn and river. On the other hand, what is he value betting on the river that you beat? AT? KQ perhaps?

If we check the turn, do we fold to a pot-sized bet?

Hmm. Just don't know. I think we have to lead the turn for about $100, fold to aggression. Block the river? Check/call?