Manual disc brakes vs power disc brakes questions

I have 2 manual disc cars, both stock A bodies, and both stop fine. I have no trouble locking them up if need be. I think power brakes are overkill until you get up around 4000 pounds or more. More room in the engine bay w/o the booster, no worrying about not having enough vacuum to work the booster if you have a lumpy cam, one less thing to break and go wrong. If you do decide to go just manual disc you will need a manual disc pushrod, because the pushrod setup is different between a power brake and manual brake setup - disc or drum. PM me if you need a pushrod.