I ran an RPM test today.
I didn't dare to push it past 4k RPM's because the oil pressure was 95 PSI!
I was afraid that the oil filter would go off like a hand grenade.
It needs new spark plugs badly! The old spark plugs got rusty.
The only thing that concerns me so far is that I'm hearing a lot of valve ticking. That is new.
I don't know why that would suddenly start happening, but I've had the head apart several times... so I guess I'll just have to check it out again...