I was getting ready to finalize my chargriller mods. I bought a piece of sheet metal for the smoke damper and 1/8" steel plate 27"x16" for my tuning plates.
Sorry no pic of the damper. what i did was, i took a plate i bought from lowes and fabricated to fit on the wall where the sfb attached with the holes and everything. i cut out the football shape in half to decrease the amount of heat.
Then I placed the 1/8" steel plate into the smoke chamber to cut. but, i left it in place, with 2" gap from the left side.
this is when i decided to pull the exhaust to the right and to the front.
I then started a chimney of charcoal to see if this would actually work.
OMG!!! IT WORKED!!
the temps were within 5 degrees across the grate
I CANNOT wait to test it out.