I'm not surprised at "mixed reviews" for carb size.
Anything that puts the fuel curve out of whack (not an error, bad adjustment or broken part - just the way the circuits operate) will effectively put that carb on the back burner as to choice, in favor of a smaller one with a fuel curve better suited to the engine's demand requirements.
These change, especially, with more displacement, cam, head work, so even a fairly similar engine may not give results you can use.
In the common Holley the air bleeds in the plate have to be drilled to change this - not fun, and very few guides.
