every week i seriously have to move my belt back in place.. after a few WOT runs the belt starts to slowly come off the tensioner.. im using gator backs.. im kinda clueless?! it wasnt that bad, but now its becoming a regular issue.. i almost should start carying a ratchet in my car
I'd take the belt off and check all the pulley bearings to make sure none are going bad. That is usually what makes belts walk in my experience. That or something misaligned, but misalignment usually throws the belt immediately. Good luck, man!