Did you do a fuel pressure test yet? One thing you can try to get some idea if the pump is working as it should is to locate & disconnect the fuel return line. There should be fuel being pumped out at a steady rate with the pumps jumpered, with no evidence of air in the gas. If there's not any flow from the return line that means one of 3 things: 1) the pump is not running, 2) it's not drawing fuel from the tank pump (check to be sure the tank unit is pumping fuel, if the rubber hose on it has split or come off it'll draw air) or 3) it's not building up enough pressure to overcome the resistance of the fuel pressure regulator & enter the return circuit - in which case there certainly isn't enough pressure to open the injectors. Check your voltage at the main fuel pump, too, by backprobing the connectors, it shouldn't be any less than around 12v with it running or it won't have enough juice to make the pressure. Could just be bad connections or wiring for the pump. Worth checking, doesn't cost you anything to do this simple test, at least... But you might want to invest in a fuel pressure gauge sooner rather than later if you'll be doing a lot of tinkering on K-jet. Take heart - once it's working right, I've found it to be fantastically reliable.
-Chris