tuning ? what order
 

when adjusting C0% , timing and idle whats the rule of thumb on the order?

Timing, CO then idle

Ditto.
Timing must be set at a fixed number nomatter what. Adjust idle to keep the engine running.
CO% must be set in a fixed range at specific timing. Adjust idle to keep the engine running.
Idle must be adjusted to ~1000rpm at specific timing and CO% depending on what engine/smog equipment you have.

Thank you kindly!