Good Pics! LOL I went with a parrallel system as opposed to the dead end for several reasons. I'm running a modified LS7 with aftermarket fuel rails, 44.5 # injectors, Weldon reg., BG in-line heat sink cooler, in-tank Aeromotive A1000. The gurus at Kinsler helped with advice, check them out. Fuel delivery was important to my set-up. With a parrallel system fuel delivery is constant and consistent to all pistons, no vapor or decrease in pressure to lean out a piston. Easier to maintain fuel pressure. Lower temps due to circulation of the fuel. Cons are plumbling and costs. Nice car.
Those pictures look like the Jody solution from Power Tour .. am I right?
Barry Grant also sells a fuel cooler, which comes with AN female fittings.
My understanding also is that the boost reference line has to be a few feet from the manifold pressure. It will not work if you run a line front to rear and connect to your rear mounted regulator.