Since my only experience w/ turbo cars has been w/ either drag cars (that didn't have a single vacuum sourced accessory) or limited use street cars w/the same deal, I got to thinking.....how does it work when you turbo a street car that has power brakes, PCV, and all of the rest of the vacuum operated stuff under the dash for the A/C and heater when the manifold goes from negative to positive manifold pressure