If you have a better, bigger picture of your pulley, that would be a good start. And also, look on the fuel rail and see if there is a green strip on it. If not, then it is a stage 1 factory (according to ZZP). Also ask the guy what brand stage 2. My LSJ is technically stage 2 (DC headers, catback, intake and stock tune) but everyone has their own.
Any questions about the Balt, all answered here:
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