I believe I begin to understand you.
A intake as I think it should be made. (better is a variable intake but that quite hard to draw)
The runners are blue. The runners should be the same length. The turn must be gentle. The begin of the runner should be rounded to avoid turbulence.
The plenum (bubblegum)should be about ten times the displacement. But that is quite hard to make under todays hood.
The green pipe is for connection with air filter/intercooler/turbo
It looks like the NA gts intake but without the 90 turns.
Derby