Civics and del slow's. The EX's had the best motor as far as performance. There is a stamp on the front of the block right by the transmission that says what motor it is. D16Z6 is the best.
http://en.wikipedia.org/wiki/Honda_D_engineThat will tell you all the versions of the D motor. And stay far away from the auto honda's of that era like IC said. They are garbage.