Razz hand - should I fold 6th?

[roggles]

I played the following Razz hand and I don't really feel sure about either 5th or 6th street. I really would appreciate some advice. I don't feel that I can fold 5th street. I do have equity to call, right? However, 6th street is another brick for me and good card for him. Is it a fold? It seems sort of likely that his ace paired him, seeing as how aggressive he was on 4th (although I don't fully understand his play there either).

Razz ($2/$4), Ante $0,40, Bring-In $0,50 (converter)

3rd Street - (1.20 SB)

Seat 1: xx xx 9[img]/images/graemlins/club.gif[/img]___folds
Seat 2: xx xx 2[img]/images/graemlins/spade.gif[/img]___folds
Seat 3: xx xx A[img]/images/graemlins/diamond.gif[/img]___completes___calls___calls
Hero: 6[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img]___raises___raises
Seat 7: xx xx T[img]/images/graemlins/heart.gif[/img]___folds
Seat 8: xx xx J[img]/images/graemlins/diamond.gif[/img]___brings-in___raises___calls

4th Street - (13.20 SB)

Seat 3: xx xx A[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/club.gif[/img]___folds
Hero: 6[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img]___bets___raises
Seat 8: xx xx J[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img]___raises___calls

5th Street - (9.60 BB)

Hero: 6[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img]___calls
Seat 8: xx xx J[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img]___bets

6th Street - (11.60 BB)

Hero: 6[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img]___calls
Seat 8: xx xx J[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img]___bets

River - (13.60 BB)

Hero: 6[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/diamond.gif[/img]___folds
Seat 8: xx xx J[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img] xx___bets

Total pot: (13.60 BB - $54,40)