He may have eaten too fast. Mine will do that also sometimes, and when they do I just don't worry about it and give them the chance to re eat it again. Sometimes they will, as gross as that sounds. It could also be that he ate too much at once.
Since you are giving pork ribs, try giving a boneless chicken breast, instead of the quarter. He's getting bone in the pork, and adding something boneless will be good for more meat, and not quite as big as a breast. Raw is a balancing act, and it could be just a little too much at once (as well as eating too fast).
Ok, I see, I will definitely try that chicken breast thing, THANK U so much for the tip. Yah, he didn't wanna eat it after lol! I've seen dogs eat there throw up though, it is gross...but i know its normal for them haha! Thanks again!