another thing to deal with is the brake booster line. on the 996 manifold, it's on the wrong side. to deal with this, i cut off the hard line that runs up the firewall from under the car. it's possible to cut off the flexible section, exposing a barbed outlet.
to this, i attached some 16mm silicone vacuum hose that i routed underneath the manifold & up to the inlet. originally, i'd flipped the inlet upside down so it pointed downward instead of upward. it turns out that it won't clear my intake plumbing this way, so i put it back into its stock position.
oh yeah, i forgot to mention that the engine is in the car.......and that i've started it.