How bad are these valve tips?

No ratators, no spin ... now add 130/315 lbs springs, really no spin. If they spin...its because the springs are weak and bouncing...

Look for grooves cut into the spring pad/seats of the heads, thats a sign.

if reusing the valves, Mic the stems ...if good, grind faces...check margin for proper thickness, if good....grind stems flat and have at it.