Carburetors for STR-12 Manifold

Uh, doesn't this really depend on the engine build?
Yes it does, I agree. I have a few engines it may go on. My 389 c.i. 340 stroker is what I was thinking. But really, just wanting to build a versatile small block setup. The VRS-4150 has all the vacuum ports/PCV ports for street which is important to me.