318 head porting for the average joe

Smart people do not rely on luck.

https://wright-here.net/files/articles/phr_1109_sbo/phr_1109_sbo_ocr.pdf

Knowing he wouldn't need enormous runners for the amount of cubes, Dale kept the volume down. He says: "The intake port is way smaller than the original. ,think the factory was 152 cc and now it's down to 145 and it's much higher. It's got a small cross section of 1.91square inches]." Final flow numbers ended up around 195 cfm on the intake and 170 on the exhaust. Though not huge peak flow numbers. he claims they were almost at those numbers by.200-inch lift. Just perfect for limited camshaft and rpm range applications.

435 HP and 430 TQ from 316 cubes and from only 195 CFM.
This is my main argument with you, I like these kind of builds too and learning about them, I like the little engine could with highly modified stock parts etc..

But

Most people on here can't build these type of engines and if they could most aren't gonna take the time money for the R&D to develop such an engine, does it take a pro builder not necessarily but it take lots of experimenting.

Yes velocity is important but what is the ideal csa, cfm runner length carb etc.. For a 318 at any of the vague rpms people generally asking to build at ? You know beside point out the benefits of smaller.
What about some concrete spec novist can follow ?