How much for 71 Thermoquad?

Nascar are not using TQ carbs.
For the umpteenth time from what you have posted, I have NOT read or seen any comparison info/test between a 1971 & 1972 & up TQ. You can post as many videos/links as you like, but until you produce some info, the question will continue you be asked.....
Talking about links.......
OEMs have to consider emissions in carb design. It could be more important than power & economy, especially in later years as emission controls tightened.
Tuner, your expert & I agree he is an expert, said this in post #29 of the link you posted earlier:
'Except in the case of OEM control, max power & min consumption are usually desired.'

You realize you can’t win this don’t you? It never matters what the issue is, Hysteric is a goal post moving, ride on the shoulders of everyone else and never post anything in your own words, shifting standards for what an “expert“ is (of course, being the smartest guy on the WWW, he gets to determine who is and who isn’t an “expert” and what the definition of an “expert” is, as it has to fit his definition at the moment and then it changes), the King of the shuck and jive move internet gawd.

You won’t win. Doesn’t matter how right you are, Hysteric will change the narrative to try and win an argument.

It should be painfully obvious to the most dull thinker around here this guy is a clown show and he is the head roustabout.