Ok, Step one is remove all the lines and caps and o rings. Measure the hose in between caps and cut. Put the caps and hoses back together. Install new o rings on injectors. Take some motor oil or some sort of lubercant and put on the o rings right before you install the caps. hook everything up but leave the injector lines cracked, crank the motor over for about 15 seconds or so with your foot planted on the floorboard. If it starts before then, shut it off and tighten up the injector lines. If it doesn't let it set for a couple minutes and do it again, until fuel comes out of the injector lines that are cracked, once fuel comes out, start it and let the air work its way out and check for leaks. The caps should just slide on there this way, and the hoses should be the right length.
Hope this Helps