Best Intake for a 408

rumblefish360 said
@Rat Bastid - Offenhauser catalog below, proceed to page 14/15

https://offenhauser.co/wp-content/uploads/2018/04/Offenhauser-Catalog-1987.pdf

Turbo Thrust IR adapters is what I had. They aren’t really IR though. It just makes it two single 4’s in essence.