Also I have had my engine fail while driving (electrical) brakes went very heavy! Mostly, I guess because I'm use to the nice soft and easy feel of boosted brakes, some people love them, some hate them, I love them. Boosted all the way! While it's working it's great!
If your engine idle rpm goes down when you press the brake, it's cos your big rubber thing and a hole in it. (I figured that out!

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I paid a lot for mine, being a MK1 Lockheed booster, next time around I'd do like my dad and buy a VH44 J from Hydraboost. Also the Vh44 J has a bleed nipple on the top, very handy

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T
