yes I'm running this but only during wide open conditions. I used a t-tap to the output wire from the ZEX WOT NOS switch under the pedal to control the relay that powers the additional fuel pump, the regulator pressure is set @ 5 Bar. It is working surprisingly well but I still have a few lean spots as Waldig was talking about. I have a new Boost Compensating Fuel Pressure Regulator
summit part number MSD Part # MSD-2222 it is adjusted automatically by using boost pressure but I haven't had the time to install it yet. I'm hoping I'll be able to have both fuel pumps running parallel all the time. BTW. if you do this make sure you use the power from the original fuel pump to power up the relay, if not you will loose all of the safety features (roll over/impact sensor) and you could end up with a X-"fire" bomb.
Another solution would be to just use your stock fuel pump install the needswings fuel filter without the regulator and install a regulator and use the MSDS electronic fuel pump booster summit part number MSD-2351.

hope this helps