I have a question regarding manual brake conversions. Anyone with first hand knowledge, please let me know what you think. I want to know about using manual brakes on the street, in a daily driver application. And the suspension will be set up for autoX/road racing/spirited driving. And I want to know about using manual brakes with big brake conversions... or Cobra brakes or S197/GT500 brakes. I am under the impression that increasing the size of the brakes will increase the stopping force, and thus decrease the need for power assisted brakes. I also want to have symmetrical brakes front and rear... same size rotors and calipers (maybe dual calipers). I know that to have/use symmetrical brakes front and rear, that I would need to use an adjustable proportioning valve to correctly bias the brakes. I am just trying to get as much information as I can on street and track driven manual brakes. Am I correct with the assumption that increasing brake size will decrease the need for power brakes? Will large manual brakes be good for autoX or spirited daily driving? Would they be safe? Thanks in advance for any help and information.