Please don't take this the wrong way but in one of your video's your car was clearly breaking up on the top end. I am almost sure you were running out of fuel pump. Like I stated earlier 1 Walbro GSL-392 will out perform an A-1000 and for alot less $$. Most guys on the Turboforums.com run either the Walbro GSL-392/Multiple set up or a Belt Driven pump when you get up there in the big ponies.
X2 on the walbro 392 its a powerful unit the only downside I see with it is the 10mm Inlet and outlet thread size. But I use one as well for pump gas setup, I'm in the process of installing a secondary fuel supply system and im using a aeromotive A1000 for that one and a 8gal cell.