Turbosmart BOV help

2018 FX SVHO BOV. Tied into vac line but did not have the 3 way that was to be used. Used a 3 way from auto parts store but BOV does not really seem to Make nose or really blow off and PSI? Could that be from not having the right 3 way? is it not getting enough vac pressure? Thank you

Where did you tie it in? Pics would help