I run a Racetronix 255lph, no issues with fuel pressure, system runs at 58psi. I can control PWM and slow it down at idle and cruise, but fuel still heats up. Not enough to cause issues though.
Even ran the 255 when my car was carb'd regulated down to 6psi.
The new stuff with PWM really helps. The Sniper can't deal with PWM (as far as I know) but the higher end EFI systems can control the pump in a smart way. That way you don't need to have the pump on full bore all the time.
