Is anyone else curious

toolmanmike said
Yes please. Never paid attention to those valves but all the high end stuff uses the it seems. Fill us in. What makes them so good?

I have been using Ferrea valves everytime I go bigger in valves I guess mostly for security but I’ve never had an issue with an Edelbrock exhaust valve and only once with an intake valve. I ordered four sets of valves this week. Lol