My suggestion, don't install it.
I basically I use mine as a Boost Gauge only now.
Do NOT use any of the stock vacuum hose. The right side small hose (about 2") has a metal pill in it that WILL screw up the Boost controller. Other than that, actuator goes to SBC solenoid OUT, turbo side goes to SBC solenoid IN. Guage vacuum line just run direct off the intake manifold.
As soon as you pull enough boost to cause detonation, you'll go into limp timing mode. The more you try to pull, the more limp it gets. Also the ECU will keep trying to reduce boost -- the end result is unreliable and inconsistant power. Go with an XEDE or some other piggyback system or replace the ECU completely and/or get a custom reflash.