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Discussion Starter #1
I have a 95gt with Victor heads, Typhoon intake, 8.1 compression ratio, not sure what cam shaft, S trim supercharger running 11 lb boost, and 42 lb injectors. My car is running lean under boost any help please?
 

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you have a wide band A/F meter?
 

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Discussion Starter #4
Yes I have a T rex pump and a fmu and also have an adjustible regulator on my fuel rail set at 40 lbs.
 

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OK, lets back up for a minute. How do you know it is running lean?
 

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Discussion Starter #7
I have an air/fuel ratio guage on it and I've also pulled the plugs and they have no color build up on them accept for a little bit of white
 

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I have an air/fuel ratio guage on it and I've also pulled the plugs and they have no color build up on them accept for a little bit of white
Let me guess, an autometer guage running off the stock O2 sensors?

white plugs are fine for an EFI car, it might be running 15:1-16:1 at idle, that is normal for an EFI car. The autometer guages don't really help much unless it is running off a quality wide band O2 sensor. When in doubt, take it to a dyno facility and have them check the A/F ratio.
 
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