Manifold Vacuum Advance what am I not getting?

340inabbody said
That’s not the point at all. I think you’re missing what I’m trying to say here.. I need to use MVA in order to run a hight advance at idle………!

Right. And why does an engine cranking 200 psi need all that idle timing.

A hack just jacks timing into it and sends it.

A tuner will at least attempt to figure out that anomaly.

It tells me the OP has the head to be a very good tuner.