Well i dyno my SC max today, but they the people there told me that my car is deonating or close to it cause on the dyno graph, the lines are not smooth but rather jittery. the guy there told me to use cooler plugs something about a 6 or 7 heat index bla bla bla, any know what is going on or will changing the plug help??

 

dang billy calm down!!! bitter are we! anywho try the 3z plugs (1 heat range cooler) and see if it helps. don't use arco, hehe jp. how was you a/f ratio?

 

To use the N/A Z plugs, I think they're one range colder than our plugs. Also if you have a auto tranny those jerky lines "may" be normal. I have seen a few dyno graphs from auto trannies with the same lines, including mine.