Any one heard of a 8 commercial champion spark plug. Was the plug of the day in the 50's. All the parts houses subbed to the D-16. I had some disagrements with them so wrote to the champion spark plug company and they verified my claim the 8-com was slightly different than the D-16 in heat range but apparently IH had a lock on it so they didn't supply them to auto parts stores. Still have that letter some where in my old files. The D-15Y was the one that IH went to to replace it for normal service and D 18-Y for lighter service. I use the D-21 in a lot of the engines now that don't work hard for any length of time with good results.
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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