Crust: In a large bowl blend the flour, butter, salt and pecans until the mixture resembles meal. Add 2 Tb of the water, toss the mixture until the water is incorporated, adding more water to form a dough, and form the dough into a ball. Dust the dough with flour and chill it, wrapped in wax paper for 1 hour. Roll our the dough 1/8" thick on a lightly floured surface, fit it into a 9" glass pie plate, and crimp the edge. Chill the shell while making the filling.

Filling: Preheat the oven to 450°. In a large bowl whisk together the syrup, sugar, eggs, butter, vanilla, lemon juice, zest and the salt. Add the pecan halves. Pour the filling into the shell and bake the pie in the middle of the oven for 10 minutes. Reduce the temperature to 350° and bake the pie for 35 minutes, or until the filling is just set.