Motor oil info

[Chevy454]

I do know that 99% of the cam manufacturers get their blanks from the same place, and that within the past few years their has been a decrease in quality in these blanks...I've heard that from different cam mans, so either they're corroborating their stories or there is something behind it. I know of some "Pure Stock" BBC's that have had cam failures (me included) using the tried & true methods of break in, with blueprint cams and stock (120-ish) spring pressures...it's a very intermittent thing.

But I wonder if a lot of solid cam failures can be attributed to poor lash maintenance? As the lash widens the abuse on the lobes/lifters increases exponentially...I've made it a habit to check my lash religously.