i ran a a-1000 in my dart with a -12 feed to the pump, -10 from the pump to the boost ref reg., and a -8 return. i never had ANY problems. my ride was making 935rwhp on pump gas... do not cheep out on a boosted engines fuel system!!!
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.
Thing is on the street you can get away with it because there is NOT enough room to keep in it. We are on and off the throttle too much.