2 birds, 1 stone.
Brian - Get the same one that comes in the Ludespeed stage III kit, I ran fine at idle with it, though it was slightly high, the ECU compensated for it pretty well and I didn't have any stalling problems of anything.
Kevin Thomas - Are you running the stock pump now without any mods on the car? That sounds just like a weak pump. Honestly if you're planning on going FI with that XT6, I would consider a fuel pump that would be an upgrade for a TT Supra or RX-7 turbo. The pump you have would be about the pump you'd upgrade to with one of the Walbro's that most of us RS-T's are using, so you'd need to go even bigger to get even more out of it. Truely, you should consider larger injectors if you're running out of fuel... not sure there are hacks for the XT-6 quite as easy to come by as the hacks for the RS-T's.