LS3 engine and fuel system questions

[Jethrow]

Hi everyone. Got a couple small questions I am hoping you can help me with. It relates to the fuel system for my LS3.

So first up, with the factory fuel rails on these engines, I am guessing it is set up for a dead head system. Tho I do see an outlet on the end of one of the rails, but think that is for a pressure gauge? Not sure, but wonder if it could be used as fuel out?

If not and I need to replace the fuel rails, can anyone recommend a good place to purchase them?

Moving on to the rest of the system, I want to set it up using 3/8 bundy tube, but am finding it hard to know where to go for the little fittings that you slip on to the tube before you flare the ends. Again, can anyone help?

For the fuel pump, I have bought a Holley EFI in-line pump that has -8 AN O-ring inlet/outlets. I need some fittings that will go from that to 3/8 EFI fuel hose, then some more fittings to go from the 3/8 hose to the 3/8 bundy tube. For the latter, was hoping for a push on type fitting that would push into the hose then screw on to the tube.

Google has not helped me solve all this, so am hoping you guys can.

And one last question. Fuel tank venting. I think you have to go to a charcoal canister, then to the intake manifold. Is this correct? What is a good charcoal canister to use? Are we just finding one from a wrecked car and putting that in?

Many thanks in advance everyone.