If you go to the cta website they have the belt size that you need for the aem underdrive pulley listed it is under contour (duh) then engine.
Hope this helps
Dan

Also anyone know which is petter the unorthodox underdrive pulley kit or the aem?

1996 Champagne GL 4-banger (ATX)
(I miss you baby)
AIM:DJT81185
Replaced with
1998 Neon Coupe DOHC 5-Speed
R/T 1.084
60' 2.549
330' 7.112
1/8 10.872
MPH 65.15
1000' 14.111
1/4 16.825
MPH 83.12