63 c10 dual master cylnder and brake line splitting question

[eddie63]

So it's time for me to upgrade my old single master cylinder to a dual power brake mc. I have read the awesome ChiefRocka thread but still have a question or two. The brake line on the rear of my truck are 3/16 and the fronts are 1/4 . I see that there are adapters from 3/16 to 1/4 but what I am wondering is do I need to get some type of proporting vavle or is it ok to just use the adapter and run a 1/4 inch line from the adapter straight to the new mc? Any help and advice will be greatly appreciated. This is my first time posting.
Thanks
Eddie
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