Rick - Reading your post I think you just confirmed what I posted earlier. After re-reading your post a couple of times I mostly agree with you too. The only thing I would add is that as the efficiency of a conventional carb drops off past its rating, it will still "flow" more than its rating, just not as well. And thats the problem with a tuned Webber system. If you get past the RPM's of a tuned system it REALLY drops off bigtime, because you lose the tuning in the manifold or the runners, not at the carb like on a holley.
Actually, in the real world a conventional carbs rolloff will match the rolloff of the efficiency of most engines if you over-rev the engine. This is both good and bad, dependent on how you look at it. But this does have bearing on the T.B. injection manifold you select vs. direct port injection or tuned port injection.
Again, the only reason l see to go to fuel injection is to make a car more streetable. And thats good enough for this hillbilly. So a Victor injection manifold will outflow a tuned system in my eyes. And the only other thing to figure out is your injector size when using this conventional manifold.
But I do understand that a carb can be tuned pretty dog gone good also. At considerably less cost I might add. Then there's the power thing. Later,,,,,,,,,
cobrashock