FT KJs time to go?

[locutus2002]

1st 10.9K
2nd 6.7K
3rd 4.6K
4th 3.0K
5th 2.4K
6th 2.0K


PokerStars Game #9595866683: Tournament #48311041, $20+$2 Hold'em No Limit - Level XX (10000/20000) - 2007/04/25 - 02:15:41 (ET)
Table '48311041 43' 9-max Seat #6 is the button
Seat 1: Locutus2002 (236726 in chips)
Seat 3: ziggy47 (323344 in chips)
Seat 4: kAmIkAdZeEe (226632 in chips)
Seat 5: Haydenmazer (388478 in chips)
Seat 6: malka18 (1443779 in chips)
Seat 9: MattSuspect (798041 in chips)
Locutus2002: posts the ante 1000
ziggy47: posts the ante 1000
kAmIkAdZeEe: posts the ante 1000
Haydenmazer: posts the ante 1000
malka18: posts the ante 1000
MattSuspect: posts the ante 1000
MattSuspect: posts small blind 10000
Locutus2002: posts big blind 20000
*** HOLE CARDS ***
Dealt to Locutus2002 [Ks Js]
ziggy47: folds
kAmIkAdZeEe: folds
Haydenmazer: folds
malka18: raises 80000 to 100000
MattSuspect: calls 90000

Reads:
MattSuspect had been playing pretty snug, but had played 2 or 3 hands in a row recently. He had been involved with the cl before and both players cked it down on a scary board. I had played several hands with Matt at an early table in which I played very weak, with 30+XBB. Matt made a lunch out of my blinds on several occassions back then. He probably views me as patient, and overly tight, however I hadn't shown down the worst hand in a pot I was involved in.

here was our last exchange (or lack thereof) the previous orbit:

MattSuspect: posts small blind 10000
Locutus2002: posts big blind 20000
*** HOLE CARDS ***
Dealt to Locutus2002 [5d 6s]
KAROyal: folds
ziggy47: folds
kAmIkAdZeEe: folds
Haydenmazer: folds
malka18: folds
MattSuspect: calls 10000
Locutus2002: checks
*** FLOP *** [Kh Ah 6h]
MattSuspect: checks
Locutus2002: checks
*** TURN *** [Kh Ah 6h] [Jh]
MattSuspect: checks
Locutus2002: checks
*** RIVER *** [Kh Ah 6h Jh] [Qc]
MattSuspect: checks
Locutus2002: checks
*** SHOW DOWN ***
MattSuspect: shows [7c 8h] (a flush, Ace high)
Locutus2002: mucks hand

Malka was considerably looser and I was shocked to see him on the final table as he had Donked off most of his chips at the earlier table I was at. He had been playing fairly loose, but all his raises were 4XBB (even at the earlier table). I'm sure his range included hands down to quality Tens (T8s or so). He has shown a wiliingness to make pot odds calls from the BB against an UTG push with j9o.

So Malka raises 5XBB on the button, I'm ready to push, and Matt calls out of the SB. I'm sure I'm behind, there is a very good chance I'm dominated, but it will be a huge pot. Do you push or fold?