318 MAX fuel economy builds?

I have an air-aid on the car now and plan on using it on the 360 but I've only seen heated ones on factory fords and they didnt have the threads inside. Where does a guy get one of those?
They went out of production about 20 years ago. Back when I had my speed shop I made one for a motor home project.
installed1.jpg

top2.jpg

machinedplate2.jpg

cones1.jpg