+/- EV of this call?

[Boquense]

I've been going at it heads up with this guy for a while, and it recently became 3 handed. I've got him at 29/22 (6 handed) over a decent sample. I would categorize him as bad SLAG, and we've been more or less going to war.

I think I beat his range here, and although its high variance, I like the call. A friend of mine disagreed.
Thoughts?

PokerStars No-Limit Hold'em, $4 BB (3 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($480)
Button ($600.40)
SB ($122.10)

Preflop: Hero is BB with T[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Button raises to $16</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $52</font>, Button calls $36.

Flop: ($106) 4[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $68</font>, <font color="#CC3333">Button raises to $548.4</font>, Hero calls $360 (All-In).

[xSCWx]

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[Boquense]

[censored] aggies.

[willw9]

This is hurrendous.

[smartalecc5]

wait, who was the bad SLAG?

[DaCooler]

honestly, what do you think hes pushing with here than you beat?

[Boquense]

I kinda forgot to mention that this guy hasn't folded once to any of my pf 3 bets. FD, smaller ace, or 77ish hand and AA once a year.

Honestly, what's this guy push here like this that has me crushed?

Also, I feel that a fd or ace high makes up a very significant percentage of his range.

[Hattifnatt]

I dont like it and think its -EV but def not by very much.

[DaCooler]

A2-3-4-5-j-q-k all have you crushed as does any pocket pair, your only hope is he has a low flush draw or a-7-9?

[Boquense]

Or complete air. With this guy I can rule out AQ/AK, and he doesn't play a straight this way. A4 and A5 are possiblities that I overlooked.