Playing a draw with position passively

[fooz]

Villain is 20/15/2.5 after 600 hands and has a 75% continuation bet%.

**

Party Poker
No Limit Holdem Ring game
Blinds: $2/$4
5 players
Converter

Stack sizes:
UTG: $400
CO: $614.50
fooz: $543.45
SB: $1318.28
BB: $726.10

Pre-flop: (5 players) fooz is Button with 7[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">CO raises to $14</font>, fooz calls, 2 folds.

Flop: 4[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] ($34, 2 players)
<font color="#cc0000">CO bets $26</font>, fooz calls.

Turn: 4[img]/images/graemlins/club.gif[/img] ($86, 2 players)
CO checks, fooz checks.

River: 2[img]/images/graemlins/heart.gif[/img] ($86, 2 players)
<font color="#cc0000">CO bets $70</font>, <font color="#cc0000">fooz raises to $255</font>

**

Thoughts?

I'm primarily wondering about the Flop play. Raising this flop just seems to scream draw, and I feel that AK-AJ are not likely to give me credit for a better hand given how aggressive I am. Plus given how passive he is I figure I'll get to showdown pretty cheaply, and can even bluff a spade that comes.

But the problem is I am less likely to get pocket pair type hands to fold, which I might with a Flop raise.

Would you bet the Turn? If so, what would you be representing?