BMW/vanos

Hello

Need advice tuning the BMW vanos inlet & exhaust.

For time consuming and less Dyno runs, shall I degree both cams at same the time or start with the inlet and then retard the exhaust ?

Knowing it's Ganna mess the VE and the ignition

Thank you

khalil,

As a general rule, and specifically for your question:

Adjusting one variable at a time is best unless you already know what the outcome of adjusting two things at once will be.