Its hard to hook the lines up wrong. The fuel feed line is 3/8" fuel injection line while the return line is 5/16" fuel injection line.
While you are at it ; its a good idea to replace the 30+ YR old fuel fill line elbow connection. They do crack and if they do at the next stop when you gas up and start, the car goes boom!
------------------ " THE BLACK PARALYZER"
-87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
[This message has been edited by Dennis LaGrua (edited 07-21-2015).]