Troubleshooting Head Components

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.

You guys are awesome. Thanks for all the advice!

Not that my opinion matters at all since you already have a plan, but just basically wanting to solve the immediate problem without going into a big job I think your thoughts on lapping the valves and replacing stem seals is a good plan.
During that you can decide if it needs more.

Did you ever hear the joke about the guy that took Carters Little Liver pills his whole life?

When he eventually died they had to beat his liver to death with a stick.

That is what spending the money to do a complete head refurbish on that motor reminds me of. :D