i, a month ago i replaced my head gaskets and now when it is cold and i smash on the throttle and get off it i smell coolant and see it coming out the exhust pipe for like 3 min then it will stop could it be a head gasket problem and it is not overheating help before i take down and it is not the gaskets.

coolant out the exhaust? or is it just water?

If it's coolant then yes it could be a head gasket or a crack in the head.

yes it is coolant but why it smokes when cold and why it smokes when i get on it but normal driving it does not smoke.

could be the intake manifold gasket too. The coolant flows through it close to the front two intakes. I had a coolant leak in my gasket (leaked out the front as opposed to toward the cylinders) but it only showed itself when I drove it hard - i.e. when it built up enough pressure in the cooling system to get past the gasket seal.