Ok, I have a '92 Integra with the exact same engine as yours. We have essentially the same car. It has 140 hp and somehow I managed to top my car out about 3 years ago and hit 138 mph according to the speedo. I would reccomend not topping out your car however. 138 was almost at the top of 5th gear which meant dangerously high revving for a long period of time and your tires surely aren't rated for such speed (mine at the time were rated at 99 mph). I've hit close to 120 fairly easily as of recent without much drama or fuss but anything above that is a bit too dangerous.