I suggest the MMC fitter was having a bad day.
The jetting for your carb will be (should be) the same as the Ford model that used the engine at that time; probably the 1600Gt version of Mexico, Cortina or Capri. Unless of course your car has been modified or perhaps rolling road tuned which may then have had a jet size change to suit.
Send me an email offline (malvern3104@outlook.com) and I will let you have a copy of the standard jetting used.
The 32/36 carb has fixed Venturi chokes, many carbs allow these to be changed.
Mike.
