Controling (normal) wear on engine parts requires maintaince (regularly) and the use of the same/proper grade of oil each time etc.
With Hot Rod (type) engines, It's a little different. These are built for extra performance, "above & beyond" what they were designed for originaly and with that, comes extra/faster wear on everything. Sometimes to the point of "self destruction".
Professional Drag Racers often carry 2 (or more) extra engines because of this.
High performance cams, used on the streets require extra maintaince, adjustments and 'heavy duty' oil.
This "idea" (some may have) that you can operate a 'hi pro' engine like a stock one, doesn't work at all. There two different things.
In the 50-60s we usually changed our lifters around 8,000 miles (to save the cam) and oil at 1,000 miles.
The additives you mention may/may not have some benefit, but most fleet studies prove that brand/type don't matter as much as regularity of oil changes.
Until there's a "fleet study" by the Phone Co. or a Taxi service/truck maintaince business, additives are just a gimic for 'normal' highway operations.
Hot Rods are a mechanical 'experiment' and there's no guarantee on anything.
Happy trails.
