From my experience, I would have to say that your motor is a sohc v-tec because my cousin has a 93 civic also, except that his is a 2 door and on top of his motor it read sohc v-tec 16 vavle. Unless a 2 dr and a 4 dr motors are different but I don't think they are, and I'm pretty sure that the stock civic like that pushes out about 120 hp.Someone correct me if I'm wrong.
If you just want an OK looking car then stick with what you got and just up grade it a little, plus a new paint job and rims. YOU'LL BE FIND!!!
But if you want to go extreme with it then I reccomend you swap the motor to a LS v-tec, or the B20 would be the best way to go. A B20 can be a bit exspensive. My wife's cousin has a 4 dr integra with a B20 motor, si transmission, and a GSR head. Also with the basic done and a couple of internal up grade like cams, throttle body, and new pistols. All of that cost him close to $10,000. It was worth it because when I test drove it.......mannnn, that car got balls. It smoked my K20 si like nothing and I pushes out about 200 hp. I know that ain't much but that's 200 hp on a 1640 lbs car. That's only about 100 lbs heavier than the 91 CRX si. Besides, with what I got, I beated the RSX typeS like it stole something. But that is still not enough to take on my in-laws' B20.
So with the light weight car like yours, a B20 would be perfect!!!