tlowe did something similar, except his divider was actually inserted full depth into the port, and his head also had the lumps installed. So his port didn't have the bolt boss in it to obstruct the airflow. There as some pics not to far back in one of these topics that shows it, and he said it made a noticeable difference even over what he got from the lumps themself. Maybe he will be watching this post and can direct you to it.
