I remember Wolflady used to do this for Marius. I think she put a rubber mouse in his food bowl becasue he was always eating too fast and then throwing it back up.

My Sunny is also my barfer kitty. He won't always do it but some days he'll throw up more than he eats and he's already my skinny boy. I feed my cats 4 small mealsa day. Two are wet and dry food and two are dry only. Sunny can't eat wet food by itself or he'll throw it back up because it's either too rich for him or he loves it so much that he eats it way too fast. He has to have his wet food mixed with his dry food. He also won't eat his dry food in a bowl but prefers it on the carpet. He's one picky cat.