400 sh playing it slow against a fish

[Knock*u*down]

Villian is like 52/8 and the kind who will never folds anything to you. My reasoning was that probably when i raise th flop iam only 50/50 at best and it takes away the possibilty for him to make a huge mistake.
On the turn iam totally lost.
Full Tilt Poker, $2/$4 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $471.20
CO: $431.50
BTN: $417.30
SB: $866.95
Hero (BB): $416.10
UTG: $271.60

Pre-Flop: 8[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (BB)
4 folds, SB calls $2, <font color="red">Hero raises to $20</font>, SB calls $16

Flop: ($40) T[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">SB bets $40</font>, Hero calls $40

Turn: ($120) 8[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $120</font>, Hero calls $120

River: ($360) K[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">SB bets $236</font>, Hero folds

Results: $360 Pot ($3 Rake)
SB mucked and WON $357 (+$177 NET)