Originally Posted by Zane's Pal
You might want to invest in a feed dispenser with a timer on it.
This is what I was going to recommend.
Unfortunately, breaking a "bad" behavior that has already been set can take a while - like weeks to a month or so. If you don't want to invest in an automatic food dispenser, you can invest in ear plugs. Trust me, the time it takes - a few weeks or a month - is worth the next 15 - 20 years!
The other thing you can try is a different way of free feeding him. Won't necessarily work, but you can give it a try over a weekend. Find a food that has a really large kibble - I know Nutro makes food that has large kibble. They're kind of forced to chew it. Next, put it on a plate instead of a bowl. This prevents the "gobbling," because they can't just "scoop" it into their mouths, they have to chase it around the plate. On top of those two things, put it on a stool that is at about head height, so he has to kind of "lean up" to get at it. This often helps stop the gobbling problem. It also takes longer to eat, so he'll full after having eaten less than in other free feeding methods.