So they pulled the pan to check the bearings on the crank (at my insistance after assuring me the metals from the 4 lobes would be contained in the
oil filter) and sure enough all the bearings are toast!
Back to the machine shop (under warrantee) for a complete rebuild! This is two months now since my Cobra was in my garage.
On the bright side I should get a better motor and no worries about the metal sludge. The machine shop can install the roller cam and no break-in!
Patience!