I have a new front disc brake conversion kit from SSBC and I opted for the POWER Booster...I know it will add weight and I have a pretty radical street roller cam 292 durantion /.620 lift so vacuum issues will be there but I did get a vacuum resovoir if that will even work....so my question is do i REALLY need the power booster?? will the front disc brakes stiil stop well without it??