Does my turn play suck or am I getting results oriented?

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Villain in this hand is pphater. He is 40/20 and very aggressive postflop. What is your play on the turn and river?

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

BB ($949)
Hero ($1342)
MP ($286.12)
CO ($992)
Button ($704.35)
SB ($769.75)

Preflop: Hero is UTG with 6[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $5.
<font color="#CC3333">Hero raises to $35</font>, <font color="#666666">3 folds</font>, SB (poster) calls $30, BB calls $25.

Flop: ($105) K[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets $70</font>, SB calls $70, BB folds.

Turn: ($245) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $175</font>, SB calls $175.

River: ($595) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero ???