Lifter question

I just used new lifters on an old cam just fine. I am no expert though, but do not move locations if reusing lifters, or that will be bad results that wipe out lifters or lobes etc.

Definitely if you run a new cam buy new lifters…

My feeling is if you are not changing cams and marked the lifter locations and none look bad, reuse. If you lost the location of any lifter, you are already screwed, sorry.