BOTH are good, each has advantages and disadvantages. Before tractors had batteries they sure came in handy lol. But with batteries and charging systems they gave way to battery powered coil distributor ignition systems. Still great in aviation uses.
Mag advantages are NO BATTERY REQUIRED. disadvantages are usually no RPM based variable spark advance like a distributor, simply two timings, start and run timing. more parts and maintenance due to impulse assembly.
Distributor advantage variable RPM based spark advance timing. ability to produce (via stored battery energy) and discharge more spark energy then a mag especially at low RPM. disadvantage IF NO BATTTERY NO SPARK
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Today's Featured Article - Memories of a Farmall C - by Monty Bradley. When I was a child, my grandparents lived on a farm owned by a Mr. Walters. The crops raised were cotton and soybeans, with about forty head of mixed breed cattle. Mr. Walters owned two tractors then. A Farmall 300 on gasoline and a Farmall C, that had once belonged to his father-in-law, and had been converted from gasoline to LP Gas. Many times, as a small boy, I would cross the fence behind the house my grandparents lived in and walk down the turn row to where granddaddy would be cultivati
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