No read.

PokerStars No-Limit Hold'em, $10 BB (8 handed)

UTG ($1930)
Hero ($1356)
MP1 ($642.50)
MP2 ($1338)
CO ($1136)
Button ($360)
SB ($903.25)
BB ($672)

Preflop: Hero is UTG+1 with , .
1 fold, Hero calls $10, 2 folds, CO calls $10, Button calls $10, 1 fold, BB checks.

Flop: ($45) , , (4 players)
BB bets $40, Hero calls $40, CO folds, Button folds.

Turn: ($125) (2 players)
BB bets $50, Hero raises to $200, BB raises to $622, Hero???

I call in a heartbeat. Since pot is unraised, he easily could have BB 2-pair special. Only a set beats you, though. If he has the set, I'll pay him.

66 3 ways
88 3 ways
AAor JJ are highly unlikely given the betteing

Only 6 ways you are beat, but a lot more ways to make 2 pair out of that (or a straight/flush draw).