Anyone know where to buy boosters ????

I've been striking out everywhere trying to find a booster and master cylinder for the 70 Duster ..

JEGS has this chrome one

http://www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_753353_-1_10161

Anyone use one of these on a Duster ???

Damn car runs like hell now, but kinda hard to drive it w/ no brakes :angry7:

Help ??

Kenny