I have read most of the old posts re power brakes and have never seen the answer to this: stock engine, power brakes; what's the best place for vacuum? I suspect I could tie into the egr valve below the carb but am not sure. Second ques.: I'm not satisfied that I have the definitive answer to whether or not I can use a master cylinder from a wagoneer ('80) that has front disc brakes. I pulled the booster and master cylinder from the truck and can use the whole thing if it's safe. HELP? Still would like to get measurements or drawings for brackets for a powersteering pump for the 230. Thanks for all the help.