Well, you really can't get too big of a pump (especially since we're talking in-tanks) so I would get the 255 HI PRESSURE since this is the biggest pump made for our cars. This pump should support about 500hp and is designed to work at the higher workin fuel pressures of turbo and supercharger apps. You can get them for $109 shipped on the internet, or for @ $120 from JDs Performance out of Orlando (has to charge tax since in same state).