i have an almost bone stock 89 lx coupe except for a mac catback system on it, its an aod car but im still only able to run 15.8 at 87 with it. Thats starting in low and shifting but i hit overdrive at 3/4 track and the car falls on its face. its got 150,000 miles on it and im sure the torque convertor is worn out but can anybody tell me what would be the best thing to do to pick up my 1/4 mile times.... gears, convertor, etc. thanks for your help