So, a beer-swillin' guy is the marketing guru about the Holley conglomerate? Hardly.
Look, even if Holley-made carbs go by the wayside, a ton of look-a-like 4150, 4500 and even lesser carbs are marketed by a number of makers, often with even better performing carbs. Truth is, carb sales (and usage) are way down and will continue going down for the foreseeable future. So be happy that other makers of very similar carbs exist if on a smaller scale.