I have a 95 GT (many aftermarket items under the hood, problem is they were there when i traded for it so im still narrowing down whats what) i attempted to set the timing, pulled the spout, set it at 10 Deg replaced the spout car wont run. manual timing set by ear at almost 20 deg, car runs hard. recently replaced both O2 sensors now i havce rough idle. I am going to recheck the timing tonight. i have seen all over the net posts on this specific issue but have yet to see an actual answer or post as to why or what it could be. oh after i replaced th o2 sensors my dash warning lights and steroe quit could be coinicidence or as ive found everytime i fix something i find another small issue.