Symptoms of wrong cam installation
@B3422w5 I think your thinking is sound. A long with Rusty’s different cam idea of it is as radical of a change as it sounds.
Double check and ask him if it is indeed the same cams and timing chain or if anything was switched/changed like the timing chain. A chain installed a tooth or two off in haste (or arrogance, kind of like - “I got this” while not actually paying attention…) could be the issue easy. If they didn’t degree the cam…. And we’re comfortable with it just being slid in, this could be the problem.