$3.40: is c/c'ing the river here the right play?

[vowels]

No Limit Holdem Tournament
Blinds: t10/t20
10 players
Converter

Pre-flop: (10 players) Hero is SB with 4[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img]
UTG calls t20 <font color="aaaaaa">(pot was t30)</font>, UTG+1 folds, UTG+2 calls t20 <font color="aaaaaa">(pot was t50)</font>, MP1 folds, MP2 calls t20 <font color="aaaaaa">(pot was t70)</font>, 3 folds, Hero calls t10 <font color="aaaaaa">(pot was t90)</font>, BB folds.

Flop: J[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (t100, 4 players)
Hero checks, <font color="#cc0000">UTG bets t20</font>, UTG+2 calls t20 <font color="aaaaaa">(pot was t120)</font>, MP2 calls t20 <font color="aaaaaa">(pot was t140)</font>, Hero calls t20 <font color="aaaaaa">(pot was t160)</font>.

Turn: 4[img]/images/graemlins/heart.gif[/img] (t180, 4 players)
<font color="#cc0000">Hero bets t300</font>, UTG calls t300 <font color="aaaaaa">(pot was t480)</font>, 2 folds.

River: T[img]/images/graemlins/spade.gif[/img] (t780, 2 players)
Hero checks, <font color="#cc0000">UTG bets t140</font>, Hero calls t140

usually i don't call the flop here but the guy gave me 8-1. is c/c'ing the river the right play?