Some interesting links.

I haven't really read these over in detail but I thought I would post them before I forgot

Intake Comparison

I saw some dyno numbers as well. Not sure if they actually get into the detail if the motors were identical and then they just swapped intakes. Not to mention that for each specific intake there is a better cam/head choice than others and the fact that each intake is meant to create the optimal power in either similar or different power bands. But anyways I thought it might be a good read

 

Check the TPI board for a post regarding an intake comparo, I think Popular Hot Rodding (of all people) did it.