Power brakes??

I've got a small diameter booster and master cylinder here that was purchased for a BB in a-body build ( I don't recall year model A ). The original owner used a torch to blow out the mounting holes in the bracket so he could shift the booster left another 1/2 inch. After he's all done he found he didn't have enough vacuum to operate the brake booster.
Lesson learned... if you plan to cam it up, manual brakes will stop it.