I say push here. You have him way outchipped and you have some leeway to gamble. He doesnt. I say you push. Double what he has put in the pot. Basically this tells you where you stand in the hand. Also this tells him he cant just call its either all his chips or nothing. Put the pressure on him. Even if he goes allin it doesnt hurt your stack much and i bet you have two overs i'm guessing he has 10's or J's. Push is the only way to go in this spot.