Here's where I'm going: My project 74 Dart Sport street/strip car will weigh approx. 3000# and will probably trap at 120-125. Why not use 10" drums w/ metallic shoes? Firm Feel sells them. It has 9" now. Drums offer the advantage of no drag, maybe lower weight? If this is feasible, would a 10" set-up bolt up to the spindle I have? It'll probably get a Dana or 8 3/4 rear.
This all depends on the application, of course. If you need stopping power, that's another matter.