carb plate is semi-effective in solving the big carb/low air velocity issue. (on intake side, not just airbox side.)
profiling could be effective IF there was only 1 needle clip position. if you move the clip around, the profile would move into unknown ranges.
since a carb is so linear in operation (needle raises in orifice/slide raises to allow more air) it's the nature of the beast. accelerator pumps solve some of the issues on 4 strokes. in theory you could add fuel via another jet or accel pump that activated at lean range... (kinda like mikuni power jet for example).
direct injection with eg monitoring/sensors could solve all these issues. but that adds a myriad of sensors - tps, o2, egt, etc..
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