What to do after turn-raise?

[Gyre]

Read on HighOnPok: fish, loose/passiv.

Can i fold this after his turn raise? The pott is quite big.

Sorry for the layout.


Game #1401584663: Hold'em FL ($2/$4) - 2005/11/23 - 18:15:20 (ET)
Table "Otello" Seat 4 is the button.
Seat 1: Luckynr7 ($223 in chips)
Seat 2: jinkse ($74.24 in chips)
Seat 3: poreznik ($20.50 in chips)
Seat 4: Rikard ($169.75 in chips)
Seat 5: HighOnPok ($130.38 in chips)
Seat 6: Hero ($168.25 in chips)
HighOnPok: posts small blind $1
Hero: posts big blind $2
----- HOLE CARDS -----
dealt to Hero [As Qd]
Luckynr7: folds
jinkse: calls $2
poreznik: calls $2
Rikard: folds
HighOnPok: calls $1
Hero: raises $2
jinkse: calls $2
poreznik: calls $2
HighOnPok: calls $2
----- FLOP ----- [Ah 4s 3d]
HighOnPok: checks
Hero: bets $2
jinkse: calls $2
poreznik: calls $2
HighOnPok: calls $2
----- TURN ----- [Ah 4s 3d][8d]
HighOnPok: checks
Hero: bets $4
jinkse: calls $4
poreznik: calls $4
HighOnPok: raises $8
Hero: ?