P.P.W9's and the goal of more HP

I put some Beryllium seats in a set of Kauffman High Port Pontiac heads that had powdered metal seats in them originally.
The guys at Kauffman said just run a little bead on them in 3 or 4 places and they’ll basically fall out.
Worked like a charm.

New seats went right into the original seat pocket with no machining.