Sounds like you have a issue with the coil and ignitor. Maybe the wire between the dist and coil. Just cause you got power to the coil/ignitor, doesn't mean they are working. Find somebody that has a working coil and ignitor and try those. Check to see what the resistance is in the wiring.
When I bought my truck it wouldn't start, but would try. Come to find out there was a bad wire that ran over the exhaust manifold that had fried the wires. I didn't know about this until I checked for resistance in the wire harness. I followed the holy bible (FSM)
On what each and every wire should be getting for resistance and ohms. Without that, I would have had to buy a harness.
