400 Hp ( Street 318 ) Build !

The unofficial story I heard was the heads had tons of work done to them, and the dyno session actually got cut short because they started leaking in a few ports.

In other words....... an interesting proof of concept....... but not at all a realistic approach if you’re looking for any type of reliability.

The question for me would be..... if you replaced the heads with something more conservatively ported(as in reliable)....... how much different with the power be?
if you went with less extreme porting and lost let's say 50hp a 350 hp 318 is still impressive imo.