Arguing which 1950s technology is superior. The Holley 4150 platform first saw wide service on Phord's Thunderbird. And AFB stands for Aluminum Four Barrel because they dated to a time when carbs had cast iron bases.
The CarterBrocks are simpler carbs that have far fewer sizes with very few choices. But, when right, they are extremely dependable.
The Holley style platform has far more sizes available. And a ton of different combos in each of those sizes.
As far as tuning, I don't think that there are a heck of a lot more guys that understand carbs today than there were 40 years ago. So the way it runs their car OOTB determines whether it rocks or is crap. More luck of the draw than precise planning or tuning or even brand.
Having said that, I am getting ready to buy the carb designed by a former Carter engineer working for a subsidiary of Holley; the new Street Demon.
That way we all win!
That is funny!! Since Edelbrock did pick up where the Carter/Weber people left off. And funny that he perfected a carburetor design from them also. The Aluminum Four Barrel is unique because of it's self adjusting secondary air (flap) valve. Works automatically to engine airflow demand. A mismatched/poorly tuned motor combo will NOT allow this type carb to perform flawlessly. Is it an "all-out" carb? No...but AGAIN, it can deliver outstanding performance when PROPERLY tuned for the street, strip or both!
"Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
