Lynn,
Check the October and November issues of “Muscle Mustangs & Fast Fords”.
In October they flow bench tested the AFR 185, Edelbrock Performer RPM, and a number of other heads. In November they dyno tested all of them.
December and January they did the same thing with the AFR 205 and Edelbrock Victor Jr. Heads.
Sounds like you have quite a motor planned for phase 3. If you do turbo it, please post some pictures, I would love to see the layout.
(By the way, the Victor Jr. Manifold is a racing single plane with a design RPM range to 8,000RPM, not a dual plane).
Have Fun,
Kevin