Troubleshooting Head Components

Well, how many miles on this motor? Honestly if it ran fine except for the bum gasket, there's no hard evidence of broken/worn-out parts, and you don't want to do a full rebuild, just clean things up and put them back together.
It claims 67k, but I’m willing to bet it’s 167k based upon the wear. Besides a timing issue, it ran well. I haven’t removed the springs yet to see how the seals are faring. I had planned on cleaning and lapping the valves since it’s undeniable they need attention. I considered porting, but I’m still reading up on it all.