I'm working on my '63 330.

It originally had a single bail master cylinder but I converted to the later 2-bolt truck master with the AREngineering adapter.

I ordered the lines from Speedway motors and they were really nice (lots of choices on lengths!) but now I need to adapt the 3/16 fittings to the 9/16 and 1/2 outlets on the master. Where do I find these?!

I also need a good distribution block. All speedway had were "T's".

Do the local parts houses carry stuff like this?

Hupp hardware over by Harry & Washington has a very good selection of brass adapters & fittings.

Indian Hills hardware at 13th and Meridian also has a good selection.

if you have trouble finding local fittings, you can always order from online from places like Earls (via Jegs, Summit, etc) or any of the aftermarket brake companies...Master Power, Baer, Wilwood, etc.

I would suggest getting a halfway decent flare tool, and just cut off the ends of the pre-fab'd lines you got, swap out the tube nut currently on there for the correct size/thread tube nut you need, and redoing the double/inverted flare on the end of the tube, much cleaner and professional looking results, and still just a fraction of the cost of ordering all pre-fabb'ed, pre-bent, custom to your application, brake lines.