Tough spot facing a shove in the FT 55k

[ur2barredout]

Full Tilt Poker Game $55,000 Guarantee - 300/600 Ante 75 -

Seat 2: Hero (39,838)
Seat 3: villain (24,666)

The button is on Villain
*** HOLE CARDS ***
Dealt to Hero [Kh 8h]
Hero raises to 1,600
villain calls 1,600
seat 5 calls 1,000

*** FLOP *** [4h 7h 5d]
seat 5 checks
Hero bets 2,144
Villain raises to 22,991, and is all in
seat 5 folds
Hero ???

What range would u put him on and what would u do in this spot?