Party Poker No-Limit Hold'em, $ BB (10 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($132.35)
BB ($72.29)
UTG ($113.24)
UTG+1 ($33.38)
UTG+2 ($97.50)
MP1 ($87.35)
Hero ($100)
MP3 ($92.95)
CO ($99.50)
Button ($99.80)

Preflop: Hero is MP2 with A, Q. SB posts a blind of $0.50.
4 folds, Hero raises to $3.5, 1 fold, CO calls $3.50, 3 folds.

Flop: ($8.50) 5, 4, Q (2 players)
Hero bets $8, CO raises to $16, Hero calls $8.

Turn: ($40.50) 7 (2 players)
Hero ???

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Villian is 20/10/3.36 over 200 hands. I can't remember him minraising before.

What's your play here?