1. Determine the EXACT missing element--you have already spent too much time poking at it with parts.
FUEL
AIR
COMPRESSION
SPARK
ALL AT THE RIGHT TIME
ALL IN THE RIGHT PLACES
2. Having fuel pressure doesn't mean SQUAT if there is no firing impulse to the injectors.
3. Having fuel pressure and a firing impulse to the injectors doesn't mean SQUAT if you have no spark.
4. Fuel pressure, firing impulse, spark--none of them mean SQUAT if you don't have enough compression.
5. If the rotor isn't turning, or the distributor is not indexed correctly, or the plug wires are totally screwed up, then nothing is going to work right.