Youtube videos dyno 318 magnum stock vs cam upgrade

YY1 said
Do they detail the rest of the build before they start swapping cams?

I've wanted for quite a while for a true "scientific method" cam shootout.

For what ever reason's most mag cam swap articles change a bunch of other stuff at the same time even though they bill "just a cam swap".

I was wondering the same. The add ons are probably buried in the first video. Intake, carb and headers I bet but the cam swap was all they did so they say.