slant six cranks but won't start

bottle feed it from a spray can of carb cleaner. It'll hit if it has spark. Just shoot it from a distance while cranking and when it catches just give it a shot every 2-3 seconds to keep it running. Have you pulled a plug and rest it on the valve cover/ground (connected) to see it spark? Your rotor button may be crap. If your getting spark at the coil, it still needs to get through the rotor to get to the plugs. I cant imagine all the plug wires going south in one fell stroke?

plug wires could be original?