Dual Manual Boost Controllers

[Fastbird]

That's still only going to let you make roughly double the spring pressure.

[GuillaumeC]

That's still only going to let you make roughly double the spring pressure.

Like I said, you can run spring pressure + regulator pressure.
I get only 5-6 psi on the springs only and I've ran up to 20 psi with the regulator plumbed as illustrated. It does work very well.

[shownomercy]

That's still only going to let you make roughly double the spring pressure.

Thats assuming you can make the t76gts push that much, I would pin it and run it on the dyno to see what it can actually do.