Originally Posted by gearheadslife
correct me if I'm wrong.. but I'd think a 650 cfm car that didn't flow that or at least -1% or 650+ would be false advertising
You would be wrong as Holley doesn't promise any particular flow, its just a label. They're not the only ones that do it either- most carb companies do. From what I recall Demon carb's are actually better than their label would indicate though (I think they're the only "non race" carb that is).