Many thanks all

An adjustable push rod is an interesting idea, looking at the pedal travel it does look like some of the initial travel is due to slack/worn plastic bushes in the pedal to rod connection.

Agreed the summit kit is not great - but i do have the hand brake connected and the hand brake levers on the callipers adjusted correctly with only a very small amount of movement in them before the hand brake engages.

I'll try and rectify the pedal slack with new plastic bushes and an adjustable rod - if that doesn't get me completely sorted it sounds like a MS brake pedal system might get me to the final desired result.

 

Yes, I done exactly that re the hand brake, the pistons appear to be ratcheted out to the point where the hand brake is almost instantaneous when applied.
On closer inspection last night there does appear to be a 1"+ of play in the pedal before i suspect it moves anything of use  - is there a way to remove that slack so the instance i touch the pedal it moves the push rod? this has to help reduce the pedal travel?

BobE wrote:

Is the brake pivot in the support bracket worn to a point that pedal travel is impacted?  This is a common issue in these cars and Mustang Steve sells a bearing kit that eliminates the plastic bushings.  I installed this kit on my 65 and am quite pleased with the results.
Make sure your MC is matched to your system, disk brake calipers need a higher volume of fluid to engage and a higher pressure than drum brakes.

To clarify:  the bearing replaces the plastic bushings on the clutch pedal shaft. You still need the proper bushings on the brake pedal pivot and the master cylinder rod where it attaches to the pedal pin.