Something's wrong with the Link. What do you have done to your teg? 142mph is a little high for an 89. I'd like to point out that a speedometers accuracy falls off when you get over say 90ish. Also it could be off at lower speeds. Example, on my teg, when I go 70 I'm actually going 65. something to keep in mind here. Also with the age on the car I wouldn't be suprised if it's off by more than that.