you can slide your timing belt? definitely replace it, it has little things that should go into the grooves and shouldn't be able to be moved like that, unless it's real lose. i'm sure it can't help that it's loose for making power.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15