NL50 - TPTK in SB vs BB 4-Bet Pot

[Route66]

Bodog NL50, 9 players. 100BB effective stacks. No reads.

Folded to Hero in SB w/A[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/diamond.gif[/img]

Hero raises to $1.75

Villian in BB raises to $5

Hero raises to $15

Villain calls

Flop ($30) 8[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/club.gif[/img]

Hero?

I'm not folding at this point, so if villain has AA/99/88 I'm going broke no matter what so my line seems irrelevant. Assuming villain has a big pair other than aces, how do I extract?

Alternatively, is there value in shoving here to rep AA and get AK to fold?

Preflop standard?


Thanks.