I figure it's time for an update. Consequently a lot of work has been done with research into the proper intake manifold design. Here are some of my results. As you'll no doubt notice, the flow characteristics have not improved, but in fact have decreased significantly from the original flow pattern. Have no fear though, I still have a few things up my sleeve to nail down the proper flow.
Design Iteration 2: Modified Plenum Chamber:
Low Velocity
High Velocity
Design Iteration 3: Modified Runner Inlet Angle:
Low Velocity
High Velocity
