nl50 how do i extract the most money out this guy?

[swainy]

ok, the villain is 39/0/0.83 after 31 hands from a previous session. i've also written in my notes that he "will stay in a pot with A3o, no pair, no draw, until the river."

He certainly won't expect me to be holding a 5 here. I'm hoping he's betting TP, or maybe 99, 77.

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 7 Players
LegoPoker Hand History Converter

Hero (MP): $50.75
CO: $9.25
BTN: $29
SB: $220.60
BB: $45
UTG: $31.75
UTG+1: $27.50

Pre-Flop: 5[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] dealt to Hero (MP)
2 folds, <font color="red">Hero raises to $2</font>, 2 folds, SB calls $1.75, BB folds

Flop: ($4.50) 5[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $2.50</font>, Hero calls $2.50

Turn: ($9.50) 8[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">SB bets $7</font>, <font color="red">Hero ?</font>

so... how would you go about getting the most out this guy? raise him now? raise him on the flop? smooth call?