Stars 400nl- Good bluff?

[d2themfi]

Villain is 25/20 but I hardly ever play on stars so it is over about 80 hands.

PokerStars No-Limit Hold'em, $4 BB (4 handed) Hand History converter Courtesy of PokerZion.com

SB ($508)
Hero ($538)
UTG ($1040)
Button ($431.50)

Preflop: Hero is BB with 5[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">SB raises to $16</font>, Hero calls $12.

Flop: ($32) 5[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $24</font>, Hero calls $24.

Turn: ($80) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $36</font>, Hero calls $36.

River: ($152) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $52</font>, <font color="#CC3333">Hero raises to $180</font>,