Well after I unbolted the plastic intake cover, removed intake tube and all bracket lines it wasn't too bad... it was more of a puzzle how to twist the boots out... I haven't looked at a torque wrench in a while and torqued 3 plugs to 30ftlbs instead of 25lb max the other 3 I did 20ftlbs.. I noticed the plugs on the right 3 cylinders looked to be running on the lean side the left side was grayish... is this normal? Normally stock cars run rich