RPM airgap with carb spacer?

I remember a magazine article that tested numerous intakes and the Eddy Air-gap had no problem at all pulling strong to 7000. It beat every single plane intake tested on power below 5000 and was within a few horses all the way to the upper 6's. I can't comment on modifying the center divider as I've never done it. On my 360 I have an Eddy Air-gap and tried a 1" 4 hole wooden spacer and it picked up some low end torque and didn't seem to affect top end hp as far as I can tell from the seat of the pants.