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Ordered a lifter...while I'm waiting for it, I'll get into the oil filter and examine for metal or other crud.

If it's still tapping after new lifter, cam may be messed up.

I'll keep you...

That's what I'm wondering....if the internals of the lifter are damaged. That would account for the rocker not oiling.

Push Rod was turning though, so I'm hoping the lobe is ok. Still going to...

no...not "hard" to pull out. Was difficult to get to. Lifter slide out nice. Literally all the faces, edges and sides of lifter have no markings whatsoever. These are flat tappet hydraulics, so the...

wow...I was working on it:)

wouldn't come out without taking off intake. To the naked eye, the lifter looks ok, no wear marks anywhere on it. Guess it could be failing internally though and not...

Here is video after valve adjustment....top end noise lessened but still tapping for sure. Also, engine not running as smooth as it used to....a little sluggish on idle every 30 sec. or so.
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gotcha....I'm not running a pcv system, but do have the draft tube and the filler cap is vented around the bottom side of it.

I don't remember the exact specs/time, but we did do an intentional break in on the engine and I seem to remember running it for 30 min at 2000. The guy that helped me rebuild the engine was an...

NTFDAY....as a matter of fact, yes, I'm running original draft tube and filler neck in the Edelbrock intake. Interesting question....why?

On CAM, it's a new cam replaced during the build. Engine...

I did tighten the lifters on the tapping cylinder and was able to quieten it but didn't want to tighten to much and possibly hurt things more. Noticed that one lifter is not oiling very...

Have a 61 Vette with a newer totally rebuilt 327 block, Edelbrock top end stuff. It seemed to be running high oil pressure for awhile (55-60 cold, 35-50 hot)...higher than it did right after...