71 Dart 410 stroker ..

If you re read what you wrote, you needed the valve in the front.
If you were using the valve wide open, it means you found better braking with it wide open because that is shifting more braking to the rear. If you would have experimented and put the valve in the front, it may stop even better. IMHO.

I understand what you are saying. And you are probably correct. I could probably use more rear brake by dialing the front down a bit. Larger pistons in the front should have more force then 8 smaller ones in the rear.

I did notice a small shimmy in the front under hard braking, last time I got to run 1/4 mile.