Intake vacuum sources
 

Take a look at this picture. I get the feeling a couple of these need plugged or something. It doesn’t seem right to me


https://cimg5.ibsrv.net/gimg/www.rx8...0975d458a.jpeg
https://cimg8.ibsrv.net/gimg/www.rx8...b539e507e.jpeg

Yeah for starters nothing should be open to atmosphere. Does the car even run like this?
As for whether they're plugged in correctly, https://www.rx8club.com/series-i-tro...-where-206314/
Depending on the year that should get you what you need.