I just installed disc conversion kit on my car. I need to replace factory mc. I have factory power brake set-up w/ elect. vaccum pump to brake booster due to big cam not suppling vaccum to booster. Now that i have installed disc in rear,should i stay w/power brakes or switch to manual ?? strip and street car.. what mc would you recommend if running manual?? If power can i replace w/factory set-up or w/disc now in rear do i need a aftermarket mc to supply enough pressure to rear disc, i will be installing wildwood proportioning valve to control pressure.. thanks again for suggestions.