I read up on Feets brake math.
I have calculated the Pedal Ratio to be 4.8.
The 65 Coronet has a 12" long pedal and the pushrod bolt hole 2.5" down from pivot.

With the existing setup 15/16 MC and 2.6 Calipers, I am only generating 695 lbs of line pressure.

So....If I redrill a hole at 1.5" I will increase the pressure to 1157.

Is this recommended?

This is a 65 Coronet and I just read that 65 and back B bodies have different pedals. There is also a hole lower than the one I'm using at 1 7/8" lower.
Does any one know if this is a Power or Manual Brake Pedal?

The car was converted to a 4 speed before I got it. I am thinking a Power brake pedal was used.

Thoughts?