I've gone with a ct26 single turbo.

I wired a blitz boost controller up, but it doesn't seem to be working/ factory waste gate opening @ stock psi

When it's on, and attached, it boosts to 7psi and bleeds/ wont boost over that.
When i unhooked the waste gate (i know bad but i had to see if intake piping was loosing pressure), it will full boost to 14 or fuel cut.

I hooked the input pressure(to solenoid) both to turbo and intake manifold.

The vacuum to the Head unit is one of those plastic lines (for oil/ boost) and goes inside a vaccum tube with multiple zipties on it, and runs about a foot down it. My boost gauge is t'd into it.