Making power out of the 318

Junk yard jewel talks about how to build a 400 horsepower 318. I don't know if this has already been mentioned, if it has I apologize for the repeat.
yes it did, but the heads was ported so far thay cracked and leaked water into the ports... lots to read on here bout 302 heads and performance, got a set sale ya cheap of a 86 running 318 with only 86,000 miles!!

you want a easy 400 hp outta a 318, something close to this, with very lil machine work...
https://www.motortrend.com/how-to/mopp-0409-318-engine-build/