Some guys think a bog is good, the engine stumbles,then picks up and they think it's accelerating harder,but it's actually slower.
X2 - this is very common, and very important.
The human body is not too sensitive to absolute forces (you can't tell how fast a plane is going), but far more sensitive to changes in force. Anyone can feel + or - 10% change, better drivers can tell down below 5% change.
Recovery from a bog feels like "coming up on the cam", but is instead going from very bad to only slightly bad.
Other things that feel like an improvement, but need more exploration and diagnosis:
Late spark curve
Late secondary opening
Too much overlap for the exhaust system

If Tony will permit?
"Supports" in this context means that the carburetor will be within the manufacturer's designed range of vacuum, and the air bleeds and venturis will function predictably without major tweaking.
If the engine is much larger, of course peak power will be down (compared to a larger carb), but also the metering circuits will be operating outside their intended range and may need expert advice.