Some have used an in-line pump from a Celica, do not know what year they are on. But they pick them up at P-N-P wrecking yards.

Get a spray can of carb cleaner, disconnect lines at both ends, and shoot it in until it comes out the other end. Let it sit for a while then blow it out with air. Repeat. You should do it on all the lines, main, return, C.C. vent line, and anything else that carries gas. There may be a few things that need to be replaced like the fuel pressure regulator, pulsation regulator. . As far as the injectors, send them out and have them cleaned and balanced.