I have a 1997 Advantage with a side mount whipple on a 502 Mag MPI.....It has ran amazing for the 8 years I've owned it, end of last season the SC pulley fell off, all 4 bolts are still in it and no metal looks to be sheared or broken. Any suggestions? I know these are old and can no longer find parts for them (at least from what I've seen) is it done and time to upgrade?

The center bolt broke off, and it's not seized up.. Good to go for the season!!