$11 PR early TT w/4 callers

Seat 1: (3,250)
Seat 2: (1,905)
Hero: (1,480)
Seat 4: (1,480)
CO: (1,485)
Button: (1,260)
SB: (1,440)
BB: (1,460)
UTG: (1,240)

BB = 30

Hero [10[img]/images/graemlins/club.gif[/img],10[img]/images/graemlins/diamond.gif[/img]]


PRE-FLOP
UTG folds, Seat 1 calls 30, Seat 2 folds,
Hero bets 120, Seat 4 folds, CO calls 120, Button folds, SB folds, BB calls 90, Seat 1 calls 90.
pot = 495

FLOP [ K[img]/images/graemlins/diamond.gif[/img],8[img]/images/graemlins/spade.gif[/img],K[img]/images/graemlins/club.gif[/img] ]
3 checks, Hero bets 250, CO calls 250, 2 folds
pot = 995

TURN [ 3[img]/images/graemlins/club.gif[/img] ]
Hero?

Raise scared off nobody, continuation didn't scare off this one, I figure the only thing I'm beating now is an 8 (that called pf?) or 99. Am I too pessimistic? I plan to check-fold here to the end. Mistakes?