Cam Problem!

I know you don't want to hear this but here is my suggestion. I would pull the engine down, clean everything, and reassemble. I wiped a cam in my 340 and just put a new cam in. I did a couple of oil changes and even ran a "Flush" through it. In about 100 miles, I noticed a knock. This is on about the 5th oil change since the new cam. I had it towed home and pulled the engine. Spun bearing on #1 cylinder. The metal was circulated EVERYWHERE, even up in the lifter valley. The pistons are ruined as they look as if they were sanded with 40 grit sandpaper and I am out a crank and at least one rod. This car has been in the family since new and has a few years under it's belt on the current build. I believe the wiped cam had everything to do with the spun bearing. Even the oil pump pickup's screen is packed with metal and I will have to get a new oil pump and pickup. My car has been down all year because of this (happened in Dec.) When I get some money, I'll get it back together.