Hey Mark!. I would like to know more anout your Mallory distributor. First of all unless the last ones did, no model 70's came with a factory distributor. They all had an American Bosch magneto. Next the Mallory was a development of George Von Deylon who was  the Oliver dealer in Napoleon Ohio, yes the man that sold the first Oliver 70. When I worked for his sucessor we always kept one set of point in the  top drawer of the parts counter, Needless to say there were more local model 70 tractprs with the Mallory than A Delco. Once in a while I help a friend with his 37 70 that still has a Mallory. Send me a P. M. and Happy New Year. John