I would check the push rods over first....reason I say that is I had one that I thought I flattened 2 years ago, turned out to be the push rod cup had slight damage to it, which made the extra clearance and acted like a wiped lobe. On the other hand, if you pull the intake and find damaged lifters and hurt lobes, you will have to tear it completely down and inspect it, clean everything at a minimum.

When I lost a lobe on a cam back in 2008 the little metal shavings got into the piston skirts and made a mess....had to replace the pistons, bore the cylinders, new bearings, new crank.....pretty much everything on the bottom end.