AFR and EGT question

[X-axis]

I have AEM wideband o2 sensor and EGT gauges.
What AFR is ok for stage1 turbo?
What Exaust Gas Temperature should be while driving?
Thanks!

[Smaay]

A/F = 11.0 - 11.5 at that range you should be fine. you will only have high EGT's if you really retard the the timing