overpair on turn, 3bet pot

Its pretty early in the match. Villain has been relatively tight overall so far but has already 3bet a few times. I folded twice, and called/folded flop once. Not many reads.

No-Limit Hold'em, $2.00 BB (2 handed) - Hold'em Manager Converter Tool from FlopTurnRiver.com

SB ($225.90)
Hero (Button) ($200)

Preflop: Hero is Button with 10http://www.flopturnriver.com/phpBB2/...iles/spade.gif, 10http://www.flopturnriver.com/phpBB2/...miles/club.gif
Hero bets $6, SB raises $18, Hero calls $14

Flop: ($40) 7http://www.flopturnriver.com/phpBB2/...es/diamond.gif, 2http://www.flopturnriver.com/phpBB2/...es/diamond.gif, 5http://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players)
SB bets $26, Hero calls $26

Turn: ($92) 5http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
SB checks, Hero bets $56, SB raises $179.90 (All-In),

???

Without a better read I might cry and fold.

Wow, genuinely tough hand, but stacksizes are really awkward for him and i dont think you really have a choice, you have to call. The thing is that if he just ends up checking 99, 88, 7x, AdK-AdJ and other hands like that... its super awkward to call so you'll probably see em shove.

Timing is really important here because all those hands require a little thinking before shoving. Insta insta shoves may be a fold.