Keith,
Thanks for your replies and explanation. You are correct the 3 rear ones are very difficult to reach. I am thinking based on your explanation, which is great, that the distributor cap and rotor are probably not the issue–as this has happened with 2 different distributors & caps. I am thinking that you may have nailed it with the plugs/wires. My guess after your explanation is that here is likely an issue with one of the 3 rear ones. Thanks for all of your help with this. Is there a way to check the individual plus & wires? Of course I do not have all of the necessary swivels etc… to reach the rear plugs.
Thanks again.
-Scott