Call this All in ?

[Hellmouth]

I think I botched this one but wanted some opinions. Im posting this from work so the detais are to the best of my recollection.

Heads up: Hero has T4500 Villian has T8500 blinds about 100/200. 10+1 stars

Villian in BB has been aggressive calling and raising 2-3BB preflop in the BB if I complete from SB. Sometimes folds to a reraise PF. Bets out on the flop 600 regardless.

I get 87s in the BB and check. Flop comes 9 7 4 rainbow. Villian bets out 600. Hero calls because villian will bet this on the flop regardless. Ive got villian on two high cards and missed. I figure I might have the best hand at this point but want to wait till the turn to raise if no scare card is out.

Turn is a ten. Villian pushes. Hero ...?

(At this point Im thinking villian might be trying to take the card down with high cards. My 77 may be good. If villain has a higher pair or two pair I have ten solid outs (open ended straight and two 77's, if villian has an over pair then I have even more since pairing my eight may also win giving me three more outs).

With ~10-13 outs do you call this draw?

Greg