I run a Holley double pumper, a PVC valve and power fron disc brakes. I have the power brakes hooked up the rear of the carb, but the brakes do not seem to work so well. Do I need to run the line from the power brake cylinder and plumb it directly into the intake manifold? Edelbrock Air Gap is the manifold I am running.

Drill & tap the intake plenum for the source. Carb outlet, more for PCV, is too small in diameter to handle the volume of vacuum needed.

Luke I have the same intake behide the carb there is a plug you take out of the intake and put your vaculum fitting in there to run you power brakes.

Thanks!