oil change on my 360

This is not a new engine. Its done about 27000 miles. The magnet always collects some material every oil change. I clean it and place back there with a new filter. It gives me an indication of whats going on. This time I see some larger than normal material on the magnet and it has me concerned. The only thing I can think of is that I replaced the dizzy with a brand new Jegs billet distributor and also replaced the distributor drive shaft with a brand new standard part. Maybe these parts have shed this material I see. The only thing I can do is check next time I do an oil change. The engine runs perfectly. No change has been detected and sounds the same.
Regards
Billy D...
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