I believe take 1/2in off the size you have now. Pretty sure that's what I did
i was told by the tech guy at superchargers.com that the 1st gen jrsc used 4in pullies for 5psi..im running the street kit w a 4in pully and powercard and my boost guage is running steady at 5psi....-joep
I believe take 1/2in off the size you have now. Pretty sure that's what I did
im about to throw my ac pully on my crank an blow the whole thing up lol
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