What AFR do you want to command at Idle?

[Loudmouth LS1]

Right now it's commanding in the 12's and I need to change that and not sure what to change it too, or where exactly to change it, any help would be great, cuz it keeps fouling the plugs!

[TAQuickness]

I command about 13.5:1 at idle. I've heard of others going as lean at 16ish:1

You will want to use the BIDI to adjust commanded fuel and spark to find the combo that yields the best vacuum for your application.

[RUTAN TA]

Just outta curiosity, which table are you refering to?

[TAQuickness]

B3505 or B3647 in COS3 and COS5 (Open Loop Fuel tables)

[RUTAN TA]

I have yet to swap pcm's and try a cos5. damn 98's.

[Doc]

RUTAN TA, don't be afraid to cross over to the dark side.;)