Not gonna be a lot of help, but IMHO they all make good and Bad ones.
For years I was a die hard Holley only carb guy. I probably bought 5 or 6 bolt on and go never had a problem. During that time I owned 1 Edelbrock (in all fairness it was on the vehicle when I bought it so no history) and it sucked. I literally had to adjust the AF mix everytime I drove it.
well a few years later I find myself with a brand new Holley with a torn vac diaphragm, out of the box and it eats N&S sets for breakfast. So out of frustration I bought an Edelbrock and it was perfect nothing like my old experience.
I have known many with the exact opposite opinions.
All that said, I am of th opinion that nothing beats a properly tuned and set up Qjet, however less that 1 in 25 Qjets is set up properly and tuned.
As for the TA, bleh For $500 you can go TBI on a SBC and run the bitch upside down.