Last chance to stop me from buying the hype...

I can offer my take on it......

If a customer wants to use those carbs on their motor...... no problem.
And if it works good ootb, that’s great too.
But if it doesn’t, and you have to start chasing the tune on the dyno....... at $100/hr...... it gets expensive real fast.
Time is $$$$........ so, if you want the engine shop to experiment....... be prepared to pay.
And it doesn’t appear jet changes are going to happen quickly with those carbs.
Screws are in the base, accessible from the bottom...... so the carb has to come off, and apart for a simple jet change.

Also, I’m going to say it’s “highly unlikely” that in a single carb application where the motor had a “bigger” cam that the idle circuit would be up to the job.

As for the dyno shop “house carbs”........ def nothing but Holley based carbs for me.
I have a variety of different ones, and which one will be used depends on what the motor is, and the predicted power output.
They need to be trouble free and not super finicky about what they’re going on.
They don’t have to be the best carbs on the planet, just something predictable and easy to work with.