Other option it to cap the output, plug a GM map sensor into the cap, mount it in my grill and see if it makes boost at 70 mph because SCIENCE*.
"SCIENCE" in this case means MAKE ALL THE GOFASTS IN DUMB/CREATIVE WAYS.
I know ya'll are going to troll me if I try this.
It's why I haven't said anything.
But, I'm willing to experiment with anything mechanical. Never know what you're going to find. The inventor of the Phantom Electric Supercharger was told it would never work.
Then it did.
Then Bosch and Volvo adapted his technology.
Have some guts. Try new sh*t and learn from your failures.