What to do with my (dead) combo draw

[recallme]

Poker Stars
No Limit Holdem Ring game
Blinds: $10/$20
6 players
Converter

Stack sizes:
UTG: $1940
UTG+1: $1209
CO: $1990
hero: $2030
SB: $2070
BB: $400

Pre-flop: (6 players) hero is Button with 5[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img]
3 folds, <font color="#cc0000">hero raises to $70</font>, SB calls, BB folds.

Flop: 6[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] ($160, 2 players)
SB checks, <font color="#cc0000">hero bets $90</font>, <font color="#cc0000">SB raises to $320</font>, hero calls.

Turn: 4[img]/images/graemlins/heart.gif[/img] ($800, 2 players)
<font color="#cc0000">SB bets $520</font>.

I have no read on Villain.

Only hands i give him credit beating me here are 66/64s, or?

Am i shoving here? I think my outs are pretty clean and theres much FE.