Just buy the kit from Driftmotion. Comes with everything that you need, and good instructions.
The stock FPR is at the front of the fuel rail, feeds to the "J" tube on the side of the block, then returns to the tank. You need to remove the stock FPR, run a fuel line to the aftermarket AFPR, then connect to the fuel tank return. You do not want to use the "J" tube anymore, since that has a restriction in it.