Fold or Push? $525 SnG with 4-flush on flop

I'm wondering what you all think of this hand. Would it be too loose to push here, considering it's a full table and I'm in the lead? This was a turbo and the blinds were up to 50/100. Villian seems solid and is capable of laying a hand down, although I've only played against him in 2 other single table SnGs, where he never finished in the money.


Full Table, $525+30 buy-in, 50/100 blinds

Seat 1: (1565 in chips)
Seat 2: Hero (1870 in chips)
Seat 3: (1630 in chips)
Seat 4: (1530 in chips)
Seat 5: Villian (1365 in chips)
Seat 6: (1740 in chips)
Seat 7: (945 in chips)
Seat 8: (1535 in chips)
Seat 9: (1320 in chips)

Seat 1: posts small blind 50
Hero: posts big blind 100

*** HOLE CARDS ***
Dealt to Hero K[img]/images/graemlins/club.gif[/img]9[img]/images/graemlins/club.gif[/img]
Seats 3,4 fold
Villian: raises 100 to 200
Everyone else folds to Hero in BB
Hero: calls 100

*** FLOP *** T[img]/images/graemlins/heart.gif[/img]T[img]/images/graemlins/club.gif[/img]4[img]/images/graemlins/club.gif[/img]
Hero: checks
Villian: bets 300

Hero: ???