11r - Quad aces post-flop

[Jay Riall]

PartyPoker $11 Regular Tournament, Big Blind is t100 (8 handed) Converter on pregopoker.com

UTG (t2155)
UTG+1 (t1860)
MP1 (t1760)
MP2 (t1925)
Hero (t1460)
Button (t3820)
SB (t4905)
BB (t2115)

Preflop: Hero is in CO with A[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img]
<font color="gray">UTG folds</font>, UTG+1 calls t100, <font color="gray">MP1 folds</font>, <font color="gray">MP2 folds</font>, <font color="red">Hero raises to t350</font>, <font color="gray">Button folds</font>, SB calls t300, BB calls t250, UTG+1 calls t250

Flop: (t1400) 6[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (4 players)
SB checks, BB checks, UTG+1 checks, Hero checks

Turn: (t1400) 4[img]/images/graemlins/heart.gif[/img] (4 players)
SB checks, BB checks, UTG+1 checks, <font color="red">Hero bets t300</font>, SB calls t300, <font color="gray">BB folds</font>, <font color="gray">UTG+1 folds</font>

River: (t2000) 6[img]/images/graemlins/heart.gif[/img] (2 players)
<font color="red">SB bets t300</font>, <font color="gray">SB folds</font>

Should I bet this flop? People are unlikely to give me credit for the ace and may come along for the ride with any pp. Should I be betting bigger on the turn or river?