I am trying to find brake lines for a 70 chevelle with manual drum brakes. I need the lines from the master cylinder to the proportioning valve (small block connected to the frame). If you know a company that sells these 2 lines by themselves please post their site here or post the product name.

70,
have you tried here?...
http://www.inlinetube.com/
you may have to buy the whole front assembly but maybe they will split it up for you.
david

You can also get them here
http://www.rightstuffdetailing.com/about_us.htm

www.classictube.com is another.
Should be able to find those needed lines easily!