78s flops a strong draw against a big stack

This situation happened in a home game that took place today.

The villian in question has been playing very aggresivly - a lot of raising preflop with marginal hands, stealing blinds, what not.
Villian-button, T18000
Hero-BB, 9000
Hero has 7h,8h
Blinds 200-400
Villian Raises 1000, SB folds, hero calls.
flop-Jh Ts 3h
hero checks, villian bets 2500, hero pushes.

given villian's wide range of hands, should i be folding this preflop, or if not, betting the flop? I dont think i can call this flop.

Jeff