Hey guys, so I took your advice and upgraded my master cylinder to the larger Blazer master. After bleeding everything and going for a drive the pedal is very hard, and I am not confident in a panic brake situation. I can slam on it and not lock up any of the wheels. I plugged by PCV to try and get a little more vacuum but it’s not a substantial improvement, barely noticeable. I currently have the stock dual diaphragm booster and am thinking about upgrading to the dual B-body booster. Has anyone done this upgrade and seen an improvement between boosters?
P.S. - Engine pulls 15” at idle, not sure what it’s pulling on the booster but the PCV is T’ed into the booster port on the carb.
P.S. - Engine pulls 15” at idle, not sure what it’s pulling on the booster but the PCV is T’ed into the booster port on the carb.