Solid roller lifters...

That plug is lean
Heat range looks good
Looks like the timing may be a bit retarded.
This should help ya figure it out
FBO Ignition - Home of the HRR688 - Spark Plug Reading

Timing is now at 34, this is better visible on the back of the strap. I didn’t check my timing initially, I was sure it’s where it was with crank trigger but it was 26 degrees. It gave me headache at the beginning. It really didn’t want to idle like that too much. This is not final photo, I had my 5 year old son with me and couldn’t focus on documentation of the whole process too much. When he heard me start the car, it was impossible to make him stay home.