Over the last 10 years, I would estimate my buds and me wipe out roughly 1 in 20 cams. Most of us are quite picky on assembly and break-in. Last two cams I wiped out were a 292H comp cam (hydraulic) and a 298HR hydraulic nitrous roller cam. Comp cam gave me a new roller cam on the second time.
As others say, I would pull the engine and flush everything. You said you pumped up the lifters, so I assume its a hydraulic cam, not a solid (flat) cam. Make sure you have oil with high ZDDP. I think you can buy it as an additive. I can't find last months Hot Rod mag. Big article on this exact subject.
Or... you could just buy my motor pictured here... just leave the hood off the truck. Oh yeah, it has a new hydraulic roller comp cam in it too!! It's a mild 454 Chevy. Getting ready to hopefully replace it with a 632 inch Chevy.
Good luck. Let us know how the next break in goes.
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