I've owned my car (1975 280z) for about three years now and I was told by the previous owner that the fuel injectors had been replaced shortly before I bought it. Recently I smelled more than the usual amount of gasoline vapors, upon opening the hood I noticed that two of the hoses that connect the fuel rail together and one of the hoses that connect the injector to the fuel rail had all sprung leaks. I don't know if the hoses were standard fuel hose, just old or if the clamps were just bad. I can tell that the hoses had all been replaced at some time in the past because all of the clamps had been replaced with the sub-par screw-gear type clamps that cut into the hose. The '75 FSM says to cut or grind the metal socket off the injector to remove the old hose from the injector. The '76 FSM says to use a soldering iron to cut the hose off the injector, leaving the metal socket in place. Many posts mention using a blade (i.e. x-acto) to cut the hose away instead of using a hot soldering iron on fuel soaked parts. Since I own a '75, do I have to use the method described in the '75 FSM, or are the injectors the same on the '75 - '78 (or through '83)? Thanks, Terry