What's with the stop and go?
If you're beat on that flop, the turn will only hurt you. There will be no turn card that finally scares you into fold. Some will push you into losing all of your stack. (another K or A)
Reraise the flop for 4 more. If he pushes, you've gotta make a judgement call based on the opponent, leaning towards a fold if you give him any respect.
If he just calls, I'd probably end up losing my stack by forcing the issue on the turn.
-'rilla