I could be way off base here, but my guess is the main purpose of the test was to try out the new carb.
I’ll just throw this out there……..
I’ve done countless carb tests on the dyno.
Usually it revolves around quantifying that the engine owners carb isn’t a power robbing turd.
So it gets compared to a known good carb.
I’ve tested many custom carbs, and carbs that come from carb specialty shops.
There might be a few instances that have slipped my mind, but I can’t think of any at the moment where some high end carb beat another similarly sized, known good carb by like 15-20hp.
Sure, they often do some things better than the test piece(better fuel curve, better throttle response, etc), but it’s pretty uncommon to see a 10+hp spread.
I’m not saying it can’t happen, I’m just saying in my experience……..it’s rare.
I’ll also say that what’s less rare is…….having the fancy new carb not be any better than the test piece……or even end up not as good.
