Intake plenum divider modifications.....
I had one years ago, but it was so rusted up I could not do anything with it. I got it apart, but the body ad corroded so badly, that it fell apart in several places. I have not seen another one and have ad some idiot sticks argue with me that they were ever made, but they certainly were.
I will tell you.....and I have thought of this for some time. I want to make a three barrel from a Thermoquad. I have enough of them to give it a whirl. I wonder how much more flow it would add by opening the center divider up on the secondary side. Something to ponder. I may try it.