I dynoed my car and my A/F was like 10.0-10.5 while boosting what is a typical a/f supposed to be? I had poor dyno #s cause I had no tow hooks on the front and they couldnt hold it down properly. 235.7 whp and no reading on torque on my first run, the second got up too 4.2k and I made 171 whp and 215.5 tq till it almost came off the dyno.

 

in the 10's you are running pretty rich. The optimal a/f to be at is around 13.5-14.

 

Not for FI cars.

He should be around 12:1. A little leaner will give more hp and a little richer will give more torque.

 

argh I meant 12.5-13 I put this in a different post earlier and yes my info was based on a N/A car. I wasn't aware FI had that much difference in a/f vs power #'s. Thanks for the info