318 MAX fuel economy builds?

According to Diamond piston calculator I'm looking at .039 Quench. I think I'll stick with an Edelbrock Performer manifold. They are easier to find and the ports look smaller than the 8007.
Just know going into it that your block will almost certainly need to be decked to get the quench number they claim. You can cheat it .010 or so using the Mr. Gasket thin head gaskets. Gotta measure everything out because getting anything above the effective quench range (about .055 to .060) will likely make your engine a detonation monster.