Yes I have. Twin turbo setups don't need huge turbos t make streetable power

Each cylinder bank is roughly 1.6 liters. With two t28s I could easily make 500whp. Hell my sr20det made 300whp @ 14psi with one t28.

The ct12a's are roughly the same physical size as a t25. And each flows 25lb/min efficiently around 10-12psi so assuming the motor has 100% volumetric efficiency (which it doesn't. In theory) I should make 500 crank horsepower. But there are limits with pump gas as well as the strength of the internals.

It's not psi that matters but airflow. As there's only so much air you can shove into that clyinder before thngs start to break