Scody21 said

Have ya checked the valve trian to see if there’s a lose rocker? That the first indication of a cam going south. If yes, I’d pull the intake and take a look at the cam / lifters. Check to see it the lifters are spinning not stuck. Yeah it kinda sucks to do it but it’s the best way to find out. Did you cut open the oil filter and check the oil after break in? A friend had a cam go south in about an hour after break in last summer.... the cam ate the face off an EDM lifter...

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