A co worker just bought a 90 Civic Dx. The person he bought the car from have a Zc motor. I believe he have a si or dx head. Not sure which one. he have a skunk2 exhaust,intake & some kind of header. The dude wanted to know what kind of times should he expect whenever he decides to run car at the track. i told him I'd ask. The car look ok. Let me know so I can give him some info. Thanks family.