i have a 01 pro x 440 with a 800 non ves engine in it it hasv force reeds, slp boost bottle, no air box, slp twin pipes, and slp cheater head. i keep blowing belts at top end so i took the clutches of to see what they had and to replace the springs but there odd colors. the primary is a purple spring with 10-64 wights and the secoundary is what looks like white/ blue but i gess could be called silver/blue and all i could find on the helix was 55-48/36 on it. any one have any sugestions. i would like to replace the springs if i can find them. but also why do you think it blows belts only on top end after been at 8200 for a minute or more. other wise the belts look fine and last fine