i have a 68 camaro with power drum brakes and i am going to buy a wilwood manual front disc setup. i was wondering what i need for a master cylinder and proportioning valve. also someone was telling me i should change the brake lines because drum brake use a different diameter line. i called the wilwood tech line but i was not too impressed with the guy i spoke to. i figure there are probably a few people on here that know more than he did.