i was reading this summary.

15) Install wastegate to the turbo exhaust manifold. Install wastegate dump pipe to
the wastegate. Install the 90 degree brass fitting to the side of the wastegate (labeled
"boost"). Install the 90 degree brass fitting to the compressor housing. Connect the
two 90 degree brass fittings with a vacuum hose. Note: do not plug the port on top of
the wastegate (labeled "VACUUM").


i am not using a ebc, so i left the top part open. i dont have a fitting for the compressor side of the turbo. its a garrett t3/t4. can anyone help me ? where do i hook up the side which says boost? to a vaccum source?

 

its the deltagate if that helps

 

If your compressor housing doesn't have a threaded fitting you can tee the wastegate line to the intake manifold.