In my opinion... Walbro Fuel Pump and DET (370cc) injectors. With good tuning you can run 10-12 psi. This FPR is from ebay? My friends have bad experiences with this regulators. I like Nismo FPR but for low budget I have this:
eBay Motors: BLOX ADJUSTABLE FUEL PRESSURE REGULATOR POLISHED CIVIC (item 140232638308 end time May-19-08 19:31:07 PDT)