if its a 4 wheel disk. brake master cylinder then it shouldnt make no dif., but why not just put the lines where they should go? turning the master cylinder around wouldnt keep you from using the same out lets. if i didnt know no better, id run the front line to the front brakes if thats the way it was made to work. if for whatever reason i couldnt then id do it the other way.


http://www.ecihotrodbrakes.com/brake_facts.html