i went 8.5
didnt know if it would effect the ca smog bs
98 gtp sedan forest green ,S1X intense cam,Intense pcm,Magnaflow exhaust, ubend delete,TEP trans 3.29's,3.4 smoothflow mps,Dyno'd 281hp and 371ft #'s of trq at the wheels http://www.cardomain.com/ride/3338681