What oil's for flat tappet, stock LA Cams ?

I'm using Valvoline VR-1 in my 71 Charger 383. Another 71 Charger 383 owner I know lost the cam in his engine. Whether it was lust plain worn out or and oil issue, I don't know, but I'd rather not find out the hard way due to an oil issue..

The lower zinc oils are formulated to preserve the catalytic converters on newer cars. If you don't have a converter, I don't see nay reason not to use the older higher zinc level oils.