It was running perfect the first 3 runs then all of a sudden knock at 35mph 13.3 deg 02 was @ 740-760,and then the rest of the night all bad got worse. I think its a fuel issue going to try and figure out tomorrow. I have an exhaust leak on the d.p to turbo housing that prob had somthin to do with the knock also.It seemed pretty quick for stock tires. I saw your last runs and thought you had some issues. I had my daughter with me and she was being fussy.