im getting 16.8 psi when target boost is 18 psi. thought it was close enough, but heads here were nice enough to let me know this may not be the case. so in addition to just having piece of mind, i would like to run a boost leak test. boost leak tester will go on intake inlet, and i was just wondering which of these need to be plugged as well? or anything else that needs to be plugged.
for reference to my pic:
green arrow is to intake inlet
red circles are to intake inlet
blue circles are to purge control (i believe, correct me if im wrong)
thanks for you help guys.