Tick Tick goes the magnum.

yes factor lifters, i installed them with the oil hole facing up.
Well, all I got is like I originally told you. Hydraulic rollers need a bit of preload. If I remember right, you can depress those plungers close to 1/4" so .080" isn't much in the grand scheme of things. Some cam makers recommend as much as 2 full turns down. All I've ever read, heard, seen and DONE is put more preload on a hydraulic roller than a standard flat tappet.

Are you 100% SURE you're measuring correctly? How are you doing it?