200 NL: I spew more than fgators (bluffing an overpair)

[LuckyDice]

Villain is 23/18/3. I'm about the same.

After he almost timed out making the turn call, I put him on some sort of overpair (not sure how big though).

So, is this a huge spew, or an actually decent time to bluff?

PokerStars No-Limit Hold'em, $2 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($121)
MP ($218)
CO ($178.85)
Hero ($677.25)
SB ($205.10)
BB ($209.15)

Preflop: Hero is Button with 5[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $8</font>, <font color="#666666">1 fold</font>, Hero calls $8, <font color="#666666">2 folds</font>.

Flop: ($19) 7[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets $14</font>, Hero calls $14.

Turn: ($47) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero bets $33</font>, MP calls $33.

River: ($113) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero bets $70</font>