Holley Systemax II vs. Eddy RPM, RPM II vs. TFS trackheat

[nmcgrawj]

How do all of the runners in these intakes compare in size? I know that Holley intake really flows compared to any other long runner intake, just wondering on the size of the bunch.

 

[Grn92LX]

The track heat has a 12" runner with a small cross section. The street heat has a 15" runner. Got this from trickflows site.