dang... I'm gonna have to clean the junk off the hood of my car so I can open it after I get home.
For now, what I can recall is that the Crank pulley has it's added rib to the front. Thus same for the jackshaft pulley. Thus if you run a standard Jackshaft pulley, the belt goes all the way to the rear of the crank.
The SC pulley has an extra rib towards the rear, and an extra rib to the front. So if you have a standard jackshaft pulley and run it with the 10 rib blower pulley, you need to put the belt in the middle of the sc pulley.
I believe that is how I have it on my car as I ran the last few months of the season with my MP overdrive kit, minus the jackshaft pulley which ment I had to do odd belt adjustments.