6$ - Heads up - To push or not to push....

[SilverLocks]

Ultimate Bet No-Limit Hold'em Tourney, Big Blind is t400 (2 handed) Hand History converter Courtesy of PokerZion.com

BB (t9775)
Hero (t5225)

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Hero raises to t800</font>, BB calls t400.

Flop: (t1600) 4[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets t400</font>, Hero folds.

Final Pot: t2000

The villain is average but has been lucky. I am thinking that I should be pushing not just betting 800. But what do you all think?