I have to install some check valves in the brake lines as I'm having some problems due to the booster being located under the car.
Im making up a new brake line to come out of the booster ,it will come out the side of the booster and then head toward the front of the car ( 4 inch forward ) before I hook the brake line so it heads back toward the existing connect ( Towards the rear of the car.
Should the check valve be installed into the brake line heading toward the front of the car ( Same height as the booster outlet ) or should it be installed in the section after the hook which is 2 inch higher than the booster outlet ,or dos,nt it matter.

Thanks