First thing you should is looking into a swap. DOHC motors tend to be easier to extract more power out of. A single turbo is all you need. Look into Drag, FMAX, or RevHard turbo kits. They tend have larger turbos which will give you more boost.
Just keep in mind the more power your pushing the less reliable the motor will become. So make sure you take strong precautions before adding any parts or raising boost.
There are lots of websites out there that will help you build your honda motor. Or you can ask questions here, and any one of our fellow geniuses will be more then happy to answer your question.
What kinda 1/4 mile times are you looking for?