Since you now seem to have replaced almost everything in the ignition system. Before you take it out on the road, I have one more thing for you to think about.
Do you run an electric fuel pump? If not, have you replaced the mechanical fuel pump actuating rod. It resides at the front of the engine where the mechanical fuel pump is installed. It is a short rod, about 3 inches long that rides on the front lobe of the camshaft and drives the lever on the mechanical fuel pump. Over time, this rod wears down and will no longer drive the fuel pump adequately. It usually manifests itself by not supplying enough of the foul fuel that we have to buy at the pump these days at the higher RPMs.
Anyway, even if you have an electric fuel pump, or your present problem is/was ignition related. I always carry a spare mechanical fuel pump rod in my road trip tool box to give to a fellow Club member (or even anyone stopped along the road that is driving a “B” or “RB” engined Chrysler product) who has stopped along the road, in mid trip. This rod, by the way, should be flat on each end with a slight radius at the outer edge. If it appears rounded on one end, it should be replaced before it causes a fuel delivery problem.
I am glad that you seem to have found the evil demon that was residing in your car. Congratulations on your determined and persistent search for that elusive “miss”. Enjoy your next hundred or thousand mile road trip in your “300 H”.
From Big John Mc Adams
(with my ’62 “Sport” 300 Convertible with Short Rams)
I have been trying to eliminate a miss in my 300H.
Posted by: "John McAdams" <clafong@xxxxxxxxxxxxx>
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