Slant six not starting.

If all ells fails remove the valve cover and make sure your valves are set correctly or see if there is a bent push rod or even jumped out of position,
I have had problems with a rotor and cap matching up and, Look at your old cap and rotor real close for a good match and make sure it is on all the way, look at your wire in the distributor and make sure it is not grounding out on the insulator. give it some choke and see if it try's to run better, if it does a vacuum leak could be your trouble , Keep us updated and keep at it you will get this figured out