Holley Air Horn Question

RustyRatRod said
Yeah, I've said this before, but in the 60s, GM had a huge R&D program on airflow and air cleaner design. When their patent finally ran out on what they were making, Moroso picked up and ran with it. Those old 14" Moroso air cleaners don't just look cool, they straighten, smooth and direct airflow right into the carburetor. You can look at most an GM air cleaner from the late 60s pretty much until EFI and see the design.

Yea, almost every air cleaner dyno test, comparison I can remember reading about, that Moroso air cleaner ruled the roost. The one with the domed top lid and radiused base.