But it isn't necessary with a system that learns quickly like the Holley unit. All you really need are just a few points in the map and then you can interpolate the rest. That gets you close enough that learn can handle the rest.

For this 470 engine I started with a known good map so I didn't even have to bother with any of that. Just loaded the map in, warmed up the engine and starting the dyno pulls. These days there should be enough known good maps floating around that you wouldn't need to do a step test unless you were working with a very odd engine combination.