Speedmaster vs Edelbrock air gap intakes

i suspect different combo’s will react differently.
I know the guys who took that 477 horse 318 to the enginemasters competition didnt leave 30 horse on the table by running that crosswinds instead of an eddie airgap, otherwise, they would have ran the eddie on it.Extremely sharp guys. Extremely sharp.
Pretty trick and scienced out mill.

I would like to know if they ported the manifold. Also, was it an actual 318?

Would you have the article on hand by chance?
While I’m dead sure the guys are sharp, isn’t there a cost factor in this competition?