Chevy guy with a Mopar? hmm...

Welcome. Brakes..........If the rest of the system is properly set up, you will probably find you don't NEED power, and may not want them. Now I'm an old guy with arthritis--65, and mine has the popular 73/ later front disc conversion, and while many guys on here are successfully using various rear drum brakes, I have a Versailles rear axle with factory disc brakes, so 4 wheel discs. The factory masmater (manual) causes this thing to stop just FINE, and I do MEAN.
Thanks for the welcome and the advice. I'm sure I would be too impatient to wait for a new master cylinder/ brake booster after doing the disk conversion anyway. So, I will probably test this theory out and see how it stops for my afterwards...I about put myself through the windsheild after hopping back into my D/D Buick and hitting the skidders haha