Is it smart???
It may or may not be smarter, that's subjective.
Myself, I think that it comes down to most people preferring V-8's.
You're probably right, but WHY do they prefer a V8, if they can go quicker/faster for less money with a turbocharged /6?
Maybe they haven't seen any evidence of that, and it never enters their mind...
Shaker 223's car is a good example of that alternative thinking; a street car with a smooth idle and great driveability, along with workable hiway gears (2.93's) that runs over 120 mph in 11-flat,
into a 15 mph headwind, in a 3300-pound car, on its first time out with a new motor.
Lots left... look for some high tens, next time out.
Ryan's '66 Valiant is 300+ pounds lighter, and is running 127, but I am not sure if it's streetable; probably is.
I don't think you can do that with a 360 (normally-aspirated) for the same money...
Just sayin'... If these people who prefer V8's were fully aware of what's possible with a turbo /6, and the cost considerations, they might re-think their engine choices; it's not cheap to go 10's and 127 mph in a small-block A-body.
Not cheap with the /6, either, but possibly cheaper, with some driveability advantages...