Technical Help reading my spark plugs

Think you nailed it. @tb33anda3rd

 

Maybe!

For E10 you need to richen about .5 on all settings. That will get you in the ballpark to continue to tune.

 

@wheeltramp brian
Try adding some more Initial degs
Of timing , Old engine, chain wear
TDC "0" is only good if you know for sure still @ "0"
Tab & mark No stretch in chain ,
Chain wear causes cam retard ,
Still each engine different,
still should experiment , keep notes