A little rough in port fuel injected is good for the air...see golf balls.
As to carbs, this is the first time anywhere in the world, these pics will appear.
First three photos are of fuel being injected ahead of the throttle plate in a rectangular section inlet manifold, at varying inlet manifold actual (corrected for density) velocities.
Throttle at around 45 degrees
Open throttle
All pics at stoichiometric, and show that with a car or TBI, "atomisation" isn't that real, a lot of the fuel was still fuel.
Throttle body did a lot of "mixing", that was pretty much negated only inches downstream with over 10% of the fuel settling to the manifold floor.
Problem with it on the floor was that it's running slower than the airflow, about 10-15% of the air velocity at WOT
and at lower manifold densities, the fuel goes even slower
Steady state, same amount of fuel makes it down the hole as air, but whip the throttle open, and the fuel on the floor is picked up, and runs into the engine, and there's a momentary lean pause while the fuel film catches back up with the air...8"/second is fairly slow...thus need for accelerator pumps.
A turbulent boundary layer along the floor would have made an interesting extension to the work.