Would this be a bad idea?

FlDart360 said

Thanks Wvbuzzmaster,
I know it's all speculation at this point. Right now with the car running good I just didn't want to overthink the problem. There is no one simple answer, and not knowing the rebuild history of the engine certainly does not help.

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That was my theory, but I pulled the valve covers and looked in and saw the lifters were missing clips, at that point, I had to fix the issue. You can see the tops of the lifters without pulling the intake or heads and it costs nothing to take a look. If you see something amiss then you know you need to open it up.