Clutch free travel about 3/4" and total about 4" which seems plenty to disengage. It would probably go more but I was doing this with my hand while holding the tape.
Brake free travel also about 3/4" and total about 3" to firm. I have the original drum brakes. Living in the flatlands of Illinois and not doing any track racing, I have not seen any need for a disc brakes conversion.
I set these when I first got the car driving, and don’t recall ever having to re-adjust either pedal.
I have the original pedals, have seen no need for trick conversions there either.
I have driven it about 11,000 miles in my term of ownership.