Thanks Everyone - I am going to try go at it again around noon. Incredibly helpful.

When you check your MC look to see if you have 2 switches or 1. If one you should seriously consider updating to a dual circuit ’68 MC or later at the same time. Simple bolt in for MC but you will have to do some re-pluming of the brake lines. All lines are available. The added safety to any pre '68 car is worthwhile. Remember the MC is the lowest part of the brake system on pre boosted cars.