Power brake booster problems ?
I have a 67 SWB with power brakes that are not working properly. I have a rebuilt 383 Stroker motor and the complete truck has been redone. Now my problem is my brakes worked great but when I went to slam on the brakes they would take a litttle while to stop. I determined that my brake booster was leaking a little bit so I replaced it. Now my brakes feel like they are not power anymore, I have to stand on the pedal to make them stop quickly. Think I just got a bad booster or could there be another problem ? I have new wheel cylinders in the back and new brake lines throughout most of the truck. Seems like I have plenty of vacuum. Could the portioning valve cause this ? Thanks for the help.
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