I've noticed the last couple of times I drove my car the SC hasn't been as vocal as usual. Last night I was just getting maybe 2 lbs boost at the most on my gauge. Obviously my belt is toast. I've heard some say that the gatorbacks are better, while others say gates is better. Is it true that the gatorback makes a better sound from the supercharger? If gatorback is best where can I find one? I have a NAPA and Advance auto. Neither carries the goodyear, NAPA carries the gates, advance only carries DAyco belts. Also, my car has the 2.76 pulley and full idlers. I read on the billetflow site that this would take a stock belt, or 75" belt. Is this correct?