I have a 98 cobra i put a vortech v-1 system on about 3 weeks ago. My problem is that the belt jumps 1 groove (toward the motor) every so often only on the supercharger pulley. I went about 450 miles and it jumped, put it back on and went another 400 or so miles of daily driving including under boost, and today it is off a groove again. Anyone else ever have a problem like this? any input would be helpfull. I have double checked everything i can think of and everything looks to be lined up properly.