I approve of this message.
I've modded the airbox plenty of times, more than enough breathing room, but I've never actually looked into modding the intake between the filter and the carb. After some struggles, sure, the big ass carbs would fit, but that shoulda been a sign!
I may do something similar someday down the road. That day that I go to do this, I'll hook a vacuum gauge up between the filter and carb. At wot, it should have the most vacuum here. more vacuum=more restriction, less=less restriction. There has got to be a happy medium.
If it's not measureable - what ever! it looks cool! lol