11.5-12 is a pretty safe air fuel ratio, I personally don't let mine go above 11.5. What air fuel ratio are you looking for?
Briane
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Red 93 GT with only 9000 original miles on it.
HP Performance Stage 1 Street kit with 60mm turbo
Car Pics
11.29 @ 126 mph 16 psi
16 lbs of boost 509 rwhp/626 rwtq
12 lbs of boost 433 rwhp/571 rwtq
********STOCK MOTOR*******