Re: Any ideas?
Use plenty of dielectric grease supplied with the module between the module and the dist body.
Only item you haven't changed is the coil.
If you have cast exhaust manifolds, it'll be hard to use a temp gun and measure exhaust temp to see/feel which cylinder is not firing. If you do have manifolds, you can 'shoot' the spark plugs for temps and see which ones are not firing.
Lean fuel to cylinders can do this also, or a vacuum leak. Vacuum gauge registers?
Another brand of spark plugs?
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