He had it set @ 4800 but me and friend used his tuning equip. and reset it to 5600-5700. It feels so much better there, just wish I could see how this rpm setting woulda made a difference on the dyno, if any at all.

Also my buddy told me something like since they used a wideband that goes into the exhaust tip (sniffer) and I was @ 13's for a/f ratio that Im probably running rich @ the motor because I have a CAT, around 11's or so since the cat burns off extra fuel and Im @ 13's @ the sniffer? True?