Engine build - Camshaft Endplay?

AJ/FormS said

I'm the kind of guy that would do something about it, even tho it is said to be a non-issue, Kindof like a married guy wearing a condom.

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flat tappets don`t require anything special, as stated above, unless something has been machined or messed with on it. rollers need the thrust controlled w/ a buton on a r/b. bearing behind the gear is good. I like .008 -.010 thrust on mine.