I am installing my new LL AK110
and am at the point where I am putting the plenum (20x20x24 tall) on and connecting it to a 14" round elbow. I was going to place it on top of the plenum (already cut the hole in top) but have since read that this is not proper practice. I plan on having a few 7" rounds coming off the sides of the plenum. Any insight would be greatly appreciated.