I put a mosier 9" in my TTA. I went to the bone yard and got the drum brakes off an F150. I put new wheel cylinders and pads in them and when I tried to hold boost I only got around 5#'s. I then put a new master cylinder and have only got to hold 10 #'s like twice all the other times I can only get 8#'s. Any ideas on whats messing me up?
TIA: Jason
TIA: Jason