Carter Thermoquads ~ 'More General Information'

agreed. that means tightening up the secondaries spring, and richening it up, and removing all the emissions controls- usually. you may take the bog out of it, but with the stock jetting, air bleeds, it's still lean a/f ratio. all the carbs were set up and designed lean for each specific application, it was the law.
from the factory, everything bogged from 1975 on. they stopped making the good Cuda, Challenger, Charger cars altogether. same with GM, Ford. it was the gas crisis. rear gears got taller in all the cars for mileage, and they dropped 2 points in compression across the board. believe me, they all bogged. they sounded like big vacuum cleaners that went nowhere when you punched it. the fix was, convert it back to the old system. change the heads, intake, cam, put gears in it. we removed tons of that early emissions equipment from the cars.
I Capped all un needed ports, jet and rod change is a tune up process, what ever the factory did doesn’t mean squat, never needed to tighten up the secondary air door to rid myself of a bog, besides it is not the go to thing to rid yourself of a bog.

All TQ’s I have used other than on stock cars have been on high performance engines. Not factory high performance.

I don’t believe you on all TQ’s bogged. I’ve had post ‘75 carbs and cars that ran just fine. Those late ‘70’s super Hwy. gears were terrible with a TQ. Just as you said. Very lean, tons of hoses, not fun!