I had my 408 dynoed a while back. It is N/A. The car made 400 to the wheels. I was looking through a dyno sheet and notice the a/f was 13's the whole way up then in the 5000 rpm range it hit 14. I just want to make sure this is safe. I'm pretty sure if it wasnt my tuner, would not have let the car go. I searched but couldn't find anything. Am I ok? Thanks.