It will bolt on and run. Advance set up is for a higher RPM engine than a M. Unless timing is set on the M with advance above TDC engine stopped or at a real low idle the timing will be slow. Then you will still have a small advance range from idle to full throttle. If still wanting a original M 40 degree advance distributor it will be way off. One advantage of a 504 distributor is for custom tuning on some other engines is the advance limit hole can be opened up to give whatever top advance wanted and the advance springs can be switched around to change the intermediate settings.
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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