THOUGHTS ON THEE BEST HYDRAULIC LIFTERS FOR A STOUT .508 CAMMED 371???

Have you considered sending that cam to a cam grinder like Oregon and have it reground to a solid profile?
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Why would he do that? He wants info on a hydraulic lifter he can use.
Here is what I'm using on my .508 cam, Crower Cam Savers.

Crower 66031X3-16 Crower Camsaver Hydraulic Lifters | Summit Racing