If you are building an engine today (~2023), Professionals are not building Hydraulic FLat Tappet camshaft engines? Don't try?

Dartswinger70 said

Uncle Tony...pssshhhh...ok....Youtube click baiters at thier finest I imagine. :lol:

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No even RRR said he wouldn't build another which lead to my youtube search. The other videos of engine builders claiming the same thing seems to confirm the problem nationally.