If that is true about the air boxes then why run them? I was thinking that if you modified your current 3" air tubes to feed the engine bay cool outside air while moving and went to the individual filters at the intake you MIGHT be able to get away with no tuning or maybe "less" tuning in consideration of the hotter under hood air you would have if you delete the air tubes all together.
I was thinking you could remove the filters from the current intake tubes, cut the tubes down in length so they do not protrude so far into the engine bay and maybe re direct the output end so it pushed the outside air up in the direction of the top of the motor. Does that make sense?
Of course it would do nothing while sitting in traffic, but while underway it should move a lot of cool air and help temps and breathing.
Just a thought.