I'm reassembling throttle body after performing an S5 upper/middle intake manifold swap and trying to find the correct home for the vacuum lines on the thermowax. One vacuum line appears to have a green, inline valve of some sort. Does this run towards the front of the throttle body or to a vacuum source on the manifold?

There are two vacuum nipples on the rear intake runner. I'm guessing one of these may be used, not sure what the other is for though.

I spent a good deal of time looking at old threads but still a bit confused. I can take pictures of my setup tomorrow for better reference.

 

one of the vacuum lines, runs from the valve at the back to the actuator on the other side of the throttle body, it is the one with the delay valve.

the other runs down to the lower intake.

when its cold, the valve is open and the secondaries are pulled closed, when it warms up, the valve cuts off vacuum and then the plates are free to open up.

it is in the shop manual Foxed.ca - Mazda RX-7 Manuals

 

Thank you for the clarification !