Recommended Brand of Valves

I reuse motorhome/ truck valves they for sure are better with hard chrome stems and stellite faces or Inconel on the exhausts
stock intakes the flash chrome is usually gone
on all new valves I od hone the stems- shows quality in how may strokes it takes the hone to "come in"
EDIT
There used to be a valve re-builder downtown LA across from Legion Stadium home of wrestling and roller derby- now a church
You could take in a basket of valves, they would grind, HARD chrome, finish grind (to my specs) stellite faces if necessary, hard tips properly ground
at much less than the price of new valves
They did mostly HD industrial and Marine and you had to know someone to be a customer- they had no time for BS
sorry they are long gone
They would grind the margin any way you specified and back face