This is the closest thing I can find right now that looks like what I'm talking about.
Basically you make it so the air doesn't have to change direction at all, giving it a pretty straight shot from the throttle body, through a sizable plenum if you'd like (shaped like a wide cylinder for example with the air running through it the long way), then to the runners, and on to the head. It would be unbelievably long though, so really not feasible on any real setup.
I've seen versions that take up much less room, but it is hard to find pictures of.
Basically you make it so the air doesn't have to change direction at all, giving it a pretty straight shot from the throttle body, through a sizable plenum if you'd like (shaped like a wide cylinder for example with the air running through it the long way), then to the runners, and on to the head. It would be unbelievably long though, so really not feasible on any real setup.
I've seen versions that take up much less room, but it is hard to find pictures of.