alternator pulley ? with vortech s-trim

[vortech gt]

just got a Pa performance 130 amp alternator to replace my failing factory one and i notice the pulley is a lot smaller than the one currently on the car.will this affect my boost level ? or should i swap the old pulley onto the Pa alternator ?
thanks

 

[stangbanger856]

It will not effect your boost at all. The only pullies that will are the crank and supercharger pullies. You may need a shorter belt to make up for it.

 

[musclemustangcb]

Speaking of pulleys and s trims. ....
im selling my bgg performance 8rib conversion kit for a vortech blower application. Only 2kmiles on it. Fixed my belt slip issues. Pm or text if interested. 2072147386