Ca smog, reduce smoke temp. Tune?

[lesd]

I posted this in the wrong forum originally , but

My truck is due for CA smog, where they hit the throttle three times for a smoke check.
My truck is high mileage, and does have a bit of smoke if I do this. I have a 'torque' tune with EFI live, and was wondering
what I can do to reduce the smoke amount for the smog check. I don't care if the truck is reduced power, or otherwise weak, I just want to reduce the smoke temporarily.
What 'knob' can I easily tune for this LB7 ?
Thanks !

[THEFERMANATOR]

Lb7 changes things a bit, but it is actually easier to clean up. Go to tables B0751 and B0752 and reduce them by say 10-15%. It will make it extra laggy, but make it slower to fuel.

[lesd]

Thanks again !

[killerbee]

Exactly what Thefermanator said.

Log EQ Ratio (smoke indicator) and you will see what rpm range is richer, then adjust it down.