That's my position as well, but the Isky literature has claims about how "oil restrictor" friendly the bushings are, and the super hard material, etc....... So I'm leaving the door open for another explanation.

I feel the bushings in this motor failed because of a lack of adequate lubrication.
That's what I'm going with unless I hear a good argument to the contrary.

The cam will go back to Comp, the lifters back to Isky...... See what that they come up with.

This is far from any type of "extreme" application either....... .430 lobe lift, 1.5 rockers, 600lbs open pressure.