There are a ton of documented tests on it out there. It’s the old weiand stealth with several different names and part numbers over the years. Neck and neck with the old 300-36. Especially on larger displacement engines. The runners in that thing are huge. It’s just an ugly intake though. LolDo you have any links to support this ?
Looks like you are using several finishing textures (Burr/roll) to your advantage.
A quick bead blast on the outside and she would look brand new!