Should hero call 6th street?

Hi all,

Had this razz spot in a 6-max HORSE tournament last week:

3♠ pays the bring-in, 2♦ folds, 3♥ folds, hero completes with (4♣9♦) A♣, 2♥ calls.

4th street

Villain: xx2♥5♣. Hero: (4♣9♦) A♣6♦, check check.

5th street

Villain: xx2♥5♣9♣. Hero: (4♣9♦) A♣6♦8♣, hero bets, villain calls.

6th street

Villain: xx2♥5♣9♣8♦.Hero: (4♣9♦) A♣6♦8♣A♠. Villain bets. Hero...?