How many per side? I have the Fruilmodel ones on hand but my kit has not arrived yet and I cannot seem to find the count on Google. BTW it will be for the Academy ODS kit if that matters.

I spent 1 minute and counted the links on the side view shown on this web-page:
http://www.inetres.com/gp/military/cv/tank/M551.html
I counted 90 but some links were hard to see so make 87 - 88 for each side and then adjust as needed when you have the kit built far enough to mount the wheels and wrap the tracks around (try them on for size).
With Friuls I think it is easier to add a link or two than it is to remove one link ....
/ Robin