I will be hitting the Dyno this week to tune my new motor but need some tips with tuning the VAFC. I am currently running a OBDI P08 computer with a PYR program(I also have a Skunk2, Mugen and Vision program). Currently my AF gauge tells me I am massively rich right now. I want to go to the dyno, make a base run with each chip then use the VAFC to tune out the extra fuel. VTEC engagement points seem fine. Or should I plug in my stock P72 and tune with the VAFC?
Motor is a 2001 ITR, Mugen 4-1 header, Greddy PE exhaust, AEM intake, PYR ecu, hi flow cat.

Thanks,

Anselm

I checked the search but did not find what I need.

 

In particular I am wondering how to use the VAFC to tune. I don't really understand the difference between the Wide Thr, Narr Thr and Ne-P:Hvt and Ne-P:Lvt settings for fuel? All I want to do is tune the fuel down across the board in all situations. How do I do this?