You may want to add more of these for other stuff like vacuum systems and non-vented fuel tanks. It's also the ticket for supercharger setups. Some folks try to source vacuum from before the blower, but that gives vacuum even at higher power levels, when the manifold is actually under boost. With this setup the tranny shifts with the proper firmness for the power actually being produced. There are lots of rodders around that want electric windows, power seats, a blower, and auto-shift. It's a solution for them as well.

David