78s line deep: 600NL

[aditya]

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

UTG ($655.40)
MP ($469.05)
CO ($1242.80)
Hero ($2130.90)
SB ($1415.60)
BB ($100.75)

Preflop: Hero is Button with 7[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">CO raises to $21</font>, <font color="#CC3333">Hero raises to $78</font>, <font color="#666666">2 folds</font>, CO calls $57.

Flop: ($165) J[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
CO checks, Hero checks.

Turn: ($165) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
CO checks, Hero checks.

River: ($165) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">CO bets $111</font>. <font color="#0000FF">Hero raises to 333</font><font color="#0000FF">, CO raises all in for 1164.8</font>

Villain is 40/26/1.55/306. I've been 3betting him a decent amount lately esp since I have position on him.

How's my line so far? At the river, is raise/fold the correct line here?