hi rod,
R u still using the original 02 sensor or a new 1?
i know that when we started to tune my fresh engine, we used new sensors to tune on.
your afr is a bit on the high side, when tuning are you using load on the dnyo or not?
what is the afr on idle?
i have 15:1 on idle an light throttle, 13.5:1 on 50% load an 12.5:1 on full load an wot.
check your fpr an see what psi it is set at, may be a bit too high which may run it richer.
what type of spark plugs r you using, r they 1 or 2 stages cooler then std an what do they look like after a power run?
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http://www.lextreme.com/forums/showthread.php?t=9037
[FONT="]:sgrin:There is No substitute for cubic inch, except for BOOST !!!![/FONT]:sgrin::burnout:
"91 LS400" Argo rods, CP pistons 9:1, Custom Tighte Cams, Whipple supercharger 20psi, Torsen Lsd,
Dual TB's, Whiteline swapbars, 97 RZ Supra brakes, Airbag & controller