COMP cam magnum rocker nut failure

[g356gear]

So I took the car out for a little spin today. I had installed Magnum roller rockers , guide plates and pushrods about 100 miles ago. I have a medium lift hydraulic cam in the motor....nothing too radical. I left from a light with a little of go petal and the car popped a couple of times and I backed out right away. The car immediately felt like it was down a cylinder. I pulled over and checked for anything odd. There were not any strange noises at idle and oil pressure was still good. I went straight home and could tell something was off in the motor. If I brought up the RPM's, I would get a little rattling out of the drivers side front of the motor. I let it cool down and pulled the plugs to check for anything nasty. #1 plug was black and wet, others all light tan and dry. I pulled the valve cover and found the pics below.




Has anyone seen this from COMP products before? Any ideas on a better product that's not going to do this on another pushrod? Needless to say the metal is nowhere to be seen in the cylinder head. I am hoping it's in the pan. I have a magnetic plug so my fingers are crossed.