Re: 21 stud MACK flathead heads info?
I have a pair of NOS heads that say FOG on one side and FOH on the other. I reasoned that the FO part was for FORD. The G and H had me stumped. When I pondered out loud on this, my wife suggested "gee" and "haw" like a dog sled musher would direct a team of dogs. Anybody have a better explanation?
Stan
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