I recently brought home a '65 fastback that's been sitting since the 1970s. I plan on replacing all of the fuel lines, but I saw in NPD's catalog that there are early and late versions for some of the lines. I'm not sure which is correct for my car. The car was built on February 12th, 1965.
Both the 'fuel tank to fuel pump' and the 'fuel pump to carburetor' lines come in an early and late style. Looking at the NPD catalog, the fuel pump to carburetor line either goes in front of the distributor or behind it. I believe mine originally went behind the distributor, though it's been modified to hook up to a Holley carburetor (see picture below).
Does anyone know what the difference is between the early and late fuel tank to fuel pump line, and which would be correct for my car?