Which one flows better, factory 6 blade water pump or 8 blade

famous bob said
I always wondered and thot about people saying to use the factory 5 blade fan , I dont see how it could move as much air as more blades , best I remember , it was for fan noise only.

Maybe already replied. The 5 blade is more along the lines of thinking while disengaged...it will let more air pass through it and not block it. Jmo