Originally Posted by Fatmike
Bingo...Answered my question I posted a few days ago. I have the same pit that I was having trouble with airflow having to keep the door open...I'm going to have mine modified...How is it cooking now? Does the other vent help considerably? How big of an opening do you have in the firebox going into the smoking chamber now? The old one like mine is huge...Thanks for posting :)
The opening is the same size. We just cut 1.5 inches higher on the top and added that same steel back on the bottom. We also removed the expanded metal as it serves no purpose that I can determine, and it blocks up about 20% of the open area. Let it breath!