I am getting a bit of KR seemingly when I let off the throttle seeing -8 according to my scantool. I have a gutted air box and I am ordering a ZZP downpipe. Also I always run a minimum of 93 octane fuel. My goal is just to go down to a 3.4" pulley. Anything else I can do to lower the KR?

 

You need a tune, I would not be driving the car hard to cause it to see 8° of kr!

 

Actually I found I was reading the wrong sensor value got that sorted out. I seen 2.8 one time since I am reading the right string now. Going to get the tune as well as the other stuff listed and see what happens before I put on the 3.4" pulley.

 

Not too bad. Headers, intake, tune, colder plugs and all that jazz should be fine... That being said, make sure you always scan. Had I not, this motor woulda been blown long ago.