My brother and I have been working with Harry to figure out our overboost issue on the track car to include: boost leak testing, double and triple checking plumbing for correct setup, swapping all boost controller components (SBC-ID), using a manual boost controller (hallman),and finally applying pressure from a regulator and verifying w/g opening visually. The car still overboosts (almost 20 psi peak) but typically breaks both tires as it happens so quickly (hoosier r6s) so I'm unable to see if the boost will return to equilibrium setting after staying on the throttle (16psi on the controller). Tomorrow I will pull out the divider and see if that has any effect. Fingers crossed but it still seems like I should be able to fix this issue without such invasive action