What is villains range after flop raise then push

[bluffbetter]

Villain is 42.9/2.4/0.8 over 42 hands

It seems to me that fish are prepared to make big bluffs as a bet on the turn or river, but they don't seem to raise very often, and when they make raises like this one it often seems to be a big hand. What range do you put villain on and do you call? I think A5 and A3 both suited are hands he will call the raise with preflop because players this loose tend to do that.

He made a small check-raise in an earlier hand of 2/0.50 in a small pot with a set and then led for 5 on the river vs a fish.

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($61.80)
Hero ($63.70)
Button ($15.70)
SB ($64.25)
BB ($71.35)
UTG ($45.30)

Preflop: Hero is CO with A[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
UTG calls $0.50, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $2.5</font>, Button calls $2.50, <font color="#666666">2 folds</font>, UTG calls $2.

Flop: ($8.25) 5[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets $6.5</font>, Button calls $6.50, <font color="#CC3333">UTG raises to $13</font>, Hero calls $6.50, Button calls $6.50.

Turn: ($47.25) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">UTG bets $29.8 (All-In)</font>,