Here's some data, courtesy of Motor's Manual. Perhaps someone with a newer edition can provide the data thru 1956. You might want to print this off and save hard copy.
The difference in the motor torque between AutoLite and Delco on the Twelve is interesting. Though both were no doubt adequate, the Delco is relatively puny. Of the two, I always considered AutoLite to have the edge in quality and performance, perhaps Jason would care to comment.
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