Terry,
The 360 carbs. had a few different "setting marks" (745B, 747B, 759A, etc.), which, I believe, translated into different jetting in some cases. One of the '76 models, for example, used a 110 main jet in place of the 100 used on previous models.
Not sure if this helps or not, but the setting mark should be stamped in a boss located on the outboard side of the carb. The jets, of course, are size marked, as well.
Best of luck.