I'm doing a 3.8L to 5.0L swap. What did you guys do to adapt the 3.8L fuel lines to the 5.0L fuel rail? My 3.8L lines enter the engine compartment through the passenger side fender and I believe the fuel lines on the original 5.0L equipped cars enter the compartment on the underside the passenger frame rail .
On my '87 LX I'm planning on using braided stainless hose with springlock to -AN adaptors at both ends.
Actually, your car being an 88 you can just plug your fuel lines in where the metal lines that connect from below do on the rail. Only problem is you will be eliminating the schrader valve.