i gotta sohc jrsc boosting 6lbs. i also got a b series charger with a 9 lb pulley on it. can i use that 9 lb pulley on my sohc charger? it should be the same huh. and i also have the jrsc fmu and its wired uo w/ the jrsc bs for the injectors. do i have to upgrade my fueling w/ 9 lbs?