Sorry for all the questions I'm just a young gun who is eager to learn and building this dart on my own with no real prior experience. So thanks for any and all help!
I checked into the rear brake hose deal, and the '67 would have used a tee that is NOT part of the hose. '72 and later brake hoses had the tee as a part of the hose.
From inlinetube.com:
I am not very familiar with the 7-1/4, other than the one that let go in my slant six Volare. Still, you have to have a tee in the rear brake line somewhere, and I've always seen them on the rear axle.