What psi is the stock supercharger producing??

[svt500]

I would like to replace the 3" stock pulley with a 2.8" pulley for an additional 2 psi. Does Anyone know what the stock charger makes from the factory??

[dtnstn]

I would like to replace the 3" stock pulley with a 2.8" pulley for an additional 2 psi. Does Anyone know what the stock charger makes from the factory??

I belive it 8psi stock. Let me know how it turns out :