[19Fordy]

Here's one:

The electric fuel pump near the tank feeds fuel forward to where it enters the bottom port of the Holley regulator. The fuel then exits the regulator to the carburetor as shown on the left hand fitting in the first photo.. A pressure gauge screws into other port on the regulator. With engine running turn Allen screw to adjust pressure and lock the setting with the hex nut..
This regulator has the "low pressure" internal spring and supplies plenty of fuel to a Holley 390 4 barrel.
The lines are 1/4 in. steel (painted black) with "Aeroquip" type fittings that I also painted black after install. Lots of companies make these fittings. Russell comes to mind. Available at speed shops and on-line. Hope this helps. Click on photo to enlarge.