Most inline pumps should be able to raise fuel pressure past the 100+ psi range. My no-name inline worked fine with my stock intank pump, but some people actually remove the intank pump and replace it with a hard pipe and just run the inline. Bosch and Airtex pumps should have no problem reaching the presures you need. If you run an inline pump along with your intank, the intank would basically be flowing a lot of volume at lower pressures, and then the inline just pressurizes the rail.