10/20.. overbet or value bet?

[greg nice]

Party Poker No-Limit Hold'em, $ Hero (9 handed) pokerhand.org hand converter

MP2 ($3824)
Hero ($2443)


Preflop: Hero is BB with 5[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img]. SB posts a blind of $10.
<font color="#666666">2 folds</font>, MP1 calls $20, <font color="#CC3333">MP2 raises to $40</font>, <font color="#666666">4 folds</font>, Hero calls $20, MP1 calls $20.

Flop: J[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, MP1 checks, <font color="#CC3333">MP2 bets $80</font>, <font color="#CC3333">Hero raises to $250</font>, MP1 folds, MP2 calls $150.

Turn: 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $450</font>, MP2 calls $450.

River: 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>


read: villian is on a naked J, i believe his minraise is strength of hand AJ-J9 range