OK i relize that this isn´t a taurus site or anything like that but i can not find a board with this good of response. I have a 1990 taurus SHO and recently i had lost alot of power. The car struggles to even spin the wheels. Recently i had oil leak into the spark plugs and caused them to misfire. I pulled all the plugs and put new ones in and changed my oil to 20W 50 with some lucas oil treatment. After that i still had the same performance no problem. I had gotten a new exhaust wich i think may be causing the problem, but i was woundering if any one could give a second opinion or have any experince with this car. Thanx alot for any help.