Metal in oil

I contacted TRISTAR motors who built engine… and yes springs were spec to match Cam … thus the dual springs existing
TRISTAR has been awesome answering questions I had on this 360LA / 350HP crate engine as far as what was used on Pistons and internals etc.
They provided Cam card as well.
Actually spoke with the guy that built it 3 years ago when I bought the car
That is not a dual spring. It’s a single spring with a flat wire damper. They are not the same thing.

Those dampers are what perfacar was talking about. Those make a ton of dirt.