If your kings where good preflop they aren't any longer due to the Q hitting the flop.
You are lucky if he has something like AK of spades or the last two Kings, I think you are beat here 90% of the time against a 21/7/5 player.

I think you should fold on the flop, don't think a raise will accomplish much in this situation. Can you really fold if he 3 bets the flop with those stacks?