Whats more odd is the fact that many things have just became rules on this forum... and they seem to stem from nothing but rumor, and those rumors come from things people have done wrong/stupidly.
99/100 times with these cars, things are simpler than they seem, and yes your pulley is too small.
I agree, its probably the most evident on the pulley size vs supporting mods discussion.
'01 GT - Top swapped. ported SC/Heads/TB, SD headers, open cone, HPTuners, 3.4 MPS, 60#'s, E85.______________________SMGPFC #99_______________________