[PFrese]

No question really - Standard CB of 1/2 to 3/4 pot. Gotta rep the King. If he calls, fine. On to the turn. You have position and can take a free river card if checked to again. If a spade hits you are money.

If he pushes after the CB, you are almost definitely against a King, but you have 8-9 outs + 3 aces. (he could have the Kspades)

You could push, looking to pick up the pot right there and have outs if called. I like that play as well. The only problem is that you are screaming - I do not have a King and I am on a spade draw.

I do not like the check behind because if you miss on the turn, he takes this pot away. If you hit an Ace, you will not get any action anyway. If a Spade hits, you might get him to bet into you, but most likely he checks and fold to your turn bet.

All things - I CB 1/2 pot and call his all in, expecting him to show me KJ, KQ with the King of spades.