IHfarmer wrote:On the ignition side would it be the more likely the points?
Could be the points or some other ignition related fault.
I would conduct a complete engine tune up. Plugs, wires, tappet adjustment (done), compression tests, points, condenser, retime distributor to engine then retime engine. Check condition of distributor cap and rotor.
When you had the valve cover off did you check the valve action and condition of the valve springs? Just asking, would be normal to check valve action.
Try a timing light when engine is missing. Check one spark plug wire at a time.
Problem with intermittent miss is that there are about 10 different possible causes. Could be one, two or more problems.