No I am not using a fan clutch. Fan is bolted to the waterpump with a spacer.
I can measure the waterpump pulley diameter and let you know.

The fan is a stock type steel fan. I will check how many blades it has. I remember it saying front on one side of the fan last time it was off.

I don't think I have vacuum advance. I will check. I have HEI but I am not sure on the advance. It will look just like a typical vacuum advance by the distributor like a Ford 302 right?