Should I Even Bet This Flop?

[jimdmcevoy]

Ultimate Bet No-Limit Hold'em, $2 BB (8 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

SB ($76.60)
BB ($74)
UTG ($144.15)
Hero ($252.65)
MP1 ($71.35)
MP2 ($157.35)
CO ($183.50)
Button ($227.60)

Preflop: Hero is UTG+1 with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $7</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">CO raises to $12</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $37</font>, CO calls $25.

Flop: ($77) 8[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $40</font>, <font color="#CC3333">CO goes all-in for $146.50</font>, Hero folds.

Final Pot: $157

It was after his all in that I looked up his stats, and saw that his PFR was 2.65%, even tighter than me (I probably should have looked this up before betting $40)

So, what do you guys do on this flop with or without this PFR info?

btw after the hand he said he had KK, so I said I had AA [img]/images/graemlins/grin.gif[/img]