rebuilding the 1.5 IMO is not really worth it. A good start off is exactly what Schmi said, a B18B, you can find those in your Integra LS and GS. Theyre very easy to swap into your 95 dx. The stock tranny and motor will be fine for low boost. If you decide to do that swap, let me know, I have some part numbers that can help you out like for the dist, ac compressor bracket, etc.