File the points, clean and reset the point gap. change the oil and use a couple of quarts of tranmission fluid (Dextron III) in place of two quarts of engine oil. Replace the plugs with new ones (check the gap first)and see if you can get it started. If it fires but don't run, continue by replacing the points, cap and rotor if you determine those are crusty or worn. If it runs for 15 seconds, shut it off (really) and continue with;
radiator and coolant (water is OK for the time being). Run it again for 3-5 minutes at a high idle (not screaming). Pull all the spark plugs out, number them according to its cylinder, (with the engine warm) and do a compression check. Write down the results for each cylinder and check them at least twice. Pull out the spark plugs, number them according to which cylinder they came from, and tell us all the results for compression and the spark plug colors for each cylinder. If you get it running, note the oil pressure.