Ok, the "rest of the story"...
You need to diagnose your problem/s before you start throwing parts at it. Believe me, I (and probably most here) have down this more than once and while it "seems" like a good idea will only exasperate your problems. You need to know what is working and what isn't so you have a baseline to move forward.
Think of it like this; the car doesnt start now so you replace all those parts and when done, still won't start, now what?
- So, you believe its getting gas (have you looked into the carb and seen it squirting in?)
- You know its getting air
- This leaves spark which is where this this thread started. You need to determine what is working and what isn't
- pull a spark plug wire, hold it near a ground (head bolt) and have someone turn over the engine with the key on (or cross the starter relay) see if you have spark. If you don't,
- then follow it to the cap checking the wire, if that is good
- if the wire is good, pull the cap and inspect the inside and the rotor
- if they are good, then you need to check the coil or replace it.
You do not need a MSD Blaster coil to make this run, a normal replacement coil will work. There is nothing wrong with the MSD coil but unless you are upgrading the rest of your ignition you are not really doing much other than spend money. Yes, there are good, better, best products on the market but cars are symbiotic meaning everything must/should work together. Replacing one part is not usually going to make a big difference.
Having said all that, you can go ahead and do a normal tune up replacing the plugs, wires, cap, rotor and if necessary the coil but i would strongly recommend that you figure out what is going on first or at least do not replace the coil until you know its bad.
There are a number of reasons an engine will not start, ignition is typically the reason but not always, the other needed component for starting is compression and if you don't have that all these parts are not going to help. Reasons for no compression usually boils down to worn out cylinders (rings not seating), bad valves (valves not sealing/seating), hole in piston, bent valves, etc.
I would be remiss if I did not mention the battery. You must have a good battery and good connections. Probably the most overlooked issue is having a good ground. These cars historically had very bad grounds, you have to make sure that all of the connections are clean and tight (at both ends) and that the battery has enough charge and is in good enough condition to turn the engine over.
You have to approach this methodically, one step at a time and you will get to a conclusion and hopefully get it running.
I hope this helps, I check this many times a day so don't hesitate to come back on here and ask questions or make statements.
