Need some help with my timing curve.

I’d like to clarify one thing quickly. The wot run and plug read will give you a good idea about wot fueling and if the peak total timing number is where the engine wants it. It is really hard to read a plug for idle and/or cruise fueling and timing especially with vac advance. But the concern (where damage mostly will occur) is heavy load at rpm and that’s what the plug read will tell you.