$55 KK - facing a flop open push

[Isura]

I won one pot early with QQ to build my stack (didn't show). I haven't been involved in a pot since. The villain doesn't seem solid, but I can't assume he's terrible yet. Instacall?

#Game No : 2565536713
***** Hand History for Game 2565536713 *****
NL Texas Hold'em $50 Buy-in + $5 Entry Fee Trny:14997047 Level:3 Blinds(25/50) - Saturday, August 20, 02:50:33 EDT 2005
Table Table 11240 (Real Money)
Seat 6 is the button
Total number of players : 9
Seat 1: jprjpr ( $1710 )
Seat 2: shadyqueen ( $1815 )
Seat 3: testbatsmen1 ( $1640 )
Seat 4: FordeM ( $185 )
Seat 6: Brian707 ( $1045 )
Seat 7: alka5 ( $850 )
Seat 8: matty56 ( $855 )
Seat 9: labronze ( $855 )
Seat 10: dawg_lb_4evr ( $1045 )
Trny:14997047 Level:3
Blinds(25/50)
** Dealing down cards **
Dealt to testbatsmen1 [ Kh Kd ]
labronze folds.
dawg_lb_4evr folds.
>You have options at Table 12577 Table!.
jprjpr has been reconnected and has 20 seconds to act.
jprjpr folds.
shadyqueen folds.
testbatsmen1 raises [150].
FordeM folds.
Brian707 folds.
alka5 folds.
>You have options at Table 12577 Table!.
matty56 calls [100].
>You have options at Table 12904 Table!.
** Dealing Flop ** [ 8c, 9s, 7s ]
matty56 is all-In [705]
Your time bank will become active in less than 20 seconds. If you do not want it to be used, please act now.
testbatsmen1