Now that I have my cylinder heads out of my V6 Tacoma, I am considering taking the valves out to inspect them in case they are bent or whatever and grind them. There is no symptoms of valves malfunctioning. They are sealed closed fine. I was just wondering if I should do it since now I have easy access to it? E.g. if I took them out and cleaned them and the housing, will it enhance the engine performance?
UPDATE: What caused me to consider this are the carbon-gunky final segments of the intake passages inside the cylinder head that leads to the valves (what is the proper term for that?) and by looking inside, I could see that the same gunk was collected on the inside of the valve (wide end that actually closes the opening). I cleaned those with a toothbrush sized wire brush and Seafoam. Here is what they looked like: