First off if its a REAL 323 inline 6 and he's "barely" beating you then theres something wrong with HIS car. that car has a 100 HP advantage over the 140 HP ls Integra. SO either your story is stretching the truth or his car is garbage. But to answer your question, Get rid of the DOHC NON-VTEC engine, swap in a B18C1 from a GSR, convert it to manual, then add a nice turbo kit like Greddy, or Turbonetics and you will have a 300-350HP street monster.