I can't remember what I did with the top port on my external wastegates.... I know I'm T-ing off a boost source. That gets connected to the "NC" port on EBC "Com" side get T-ed off and each side gets connected to bottom port on wastegate. Where do I connect the other port on the wastegate? I forget? Leave it uncapped? connect it to the plenum? or does that get connected to a vacuum source?