Do I need a boost referenced regulator for EFI?

turbo TBI project. Do I need a boost referenced fuel pressure regulator? Im planning on running stock 360 TBI on a 273 @ <9psi. Fuel pressure will be 14-20psi for TBI. Ill run a 48psi inline pump with a 14 psi regulator/return line to the TB. do I need to have the regulator increase the fuel pressure to the TBI under boost?