Cage is certified to 8.50.

As far as the oiling goes, it's the biggest weak spot on a viper. I'm sure I could push it past that point, but why take the chance? I'm not trying to set any records. I'm enjoying my car and will push it within reason. I'll run some 1/4 mile stuff later on and put up some 8's. Right now I want to run 9's in the 1/4 on street tires