my 740 normally aspirated has just developed a hard start and now, no start condition. i was able to start it with ether last nite, not something i like doing. i have replaced coil, ignition wires, rotor, dist cap, plugs, fuel pressure regulator. It runs absolutely beautifully as soon as it is running. when i pulled out injectors to watch them pulse they do not spray. would fuel pump or clogged filter do this? how about whatever gizmo sends electic signal to injectors ( on left side of engine under intake minifoild) or is it some weird relay ( like the impulse relay by expansion bottle) i also tried jump-starting with the idea maybe somewhere there was a current drain...all for naught. onset was unheralded by any other symptom, and it has gotten worse. for a while if i let it sit for awhile it would start, that day has passed ...lol..plz help..ty