If those are real Comp lifters, I have nothing to add. But counterfeit chinese lifters are everywhere these days and sometimes the oiling valve inside is MIA. After your few minutes of running I see a bit of galling just above the wheel- maybe not tool steel but coat-hanger steel? Or just lack of oil? If you do decide on a rebuild by a competent Ford engine shop, send Comp the cam & lifters for a forensic. Sometimes you get lucky and find the whole world is not all bad people.
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