[schwza]

i don't like pushing here. if you get get called, you're going to be ~30% vs Kx/55-QQ, or ~40% vs a non-dominating A.

that's pretty bad shape. and you have a lot of equity in the pot just by checking, roughly 60% (you're in position, and your hand's probably a little better than his). so of the 400 out there, you can expect to win ~240 on average, so you only really win 160 when he folds to your push. and you're risking 2300 to win that 160, which is too much.

i think making it 550-600 is fine (this is what i would do) and checking is fine, but pushing is risking too much to gain too little. if you had more like 9x instead of 12.5x i would probably push.