Doc can cry all day long about the Holley's but the simple fact is they are a great carb that is easy to tune and parts are as close as your local O'Reilly's or Autozone.
Thermoquads may have worked well back in the day but, as others here have pointed out, are quickly going the way of the dinosaur.
NO ... gy .... all
...and using YURR logic about parts being more available ... you must be suggesting that we all turn-into Chebby guys ...
...AND the Berri crab is in the same Garden-Grave(yard) as the Plastic Fantastic !
....A N D if the aftermarket gives-us a econ and dependable DPFI system ...NO ONE (in their right minds) ... will use any type of crab ....
Gy3, you just HAD to get Doc GOING, didn't you!!
"Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
... gy .... all 
