KK on not safestest board deepish 5/10

[ahnuld]

Villan is 24/17 reg, who plays ok. Normal amount of aggression and history seen between us. I have done this move with crap before and AK and obviously other hands like KK,QQ sometimes JJ. This flop really isnt good. I mean, im ahead of Ak and JJ and TT is possible I guess but im pretty sure he range is JJ+ AK. Check or bet flop?

Party Poker No-Limit Hold'em, $10 BB (5 handed) Hand History converter Courtesy of PokerZion.com

Hero ($1498)
UTG ($1199.75)
MP ($2904.02)
Button ($95.75)
SB ($1606.75)

Preflop: Hero is BB with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $35</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">SB raises to $140</font>, <font color="#CC3333">Hero raises to $400</font>, MP folds, SB calls $260.

Flop: ($835) 6[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks.

Final Pot: $835