A little off topic, but can someone explain the low end torque gains observed via the "tweaked manis"....

I'm guessing the torque is related to the VE and associate "punch" from the ignition ...at low rpms...
hence the tweaked mani's are offering more air to achieve that punch.
The stock "sloped" mani's would be tuned for a certain volume flow...tapering towards the front as the air gets consumed in the back 1-2 cylinders....
but...at low rpm when the volume intake is less....the sloped mani may preference the rear cylinders...potentially starving the front cylinders...??
With the tweaked mani's - they appear much more uniform and hence may reduce this bias of air towards the back, consequently the front cylinders are seeing more air and hence torque.
Having typed that...I now recall Waldig's bridged manis...
You experienced guys....Let me know if I'm close or way off the mark...

Discussion invited...