Deciding on replacement intake (318, details in post)

273 said
No that just the basic summary of those 4 400 hp 318 builds.

Your mostly there depending how well your heads are ported.

I am not knowledgeable enough to judge in all honesty and I’ve not seen a set of unported ones up close to be able to compare meaningfully.

Thank you for the links - will be interesting reading when I get home.