brake booster

Hi Guys, I have an issue with my brakes. When I apply the brakes, the 1st half of the pedal stroke feels great but then the pedal goes quite hard. My setup is: Willwood discs front and back Willwood Master Cylinder 8 Inch brake booster Crate ZZ502 The old brake boost was an 11inch and was...

I'd like to post a comparison of today's alkaline Zinc plate verse cyanide Cadmium plate of yesteryear. Which is Zinc and which is Cadmium? :confused:

In my 68 Chevelle SS396 with stock air conditioning and power brakes, would it be possible to remove the AC vacuum canister and run the vacuum hose to a new nozzle on the brake power booster? I could drill a small hole in the rear of the booster and attach a vacuum line. It would clean up the...