boost controller hook up *searched*

[nismo tuned s14]

all the directions ive read to install a boost controller says that it goes in between the wastegate and a nipple off the ic piping

my actuator operates from a vacuum line (not a pressure line) from the fpr. this is what the greddy manual said for the ka turbo kit.

i have the profec e01.

ive tried many combinations with no luck. its like im running open wastegate because i hit around 22 psi when i only need to hit no more than 10 psi.

which vacuum lines should i put the solenoid in between for the boost controller to operate properly?