The 750x16 tires would be a little large for a basically stock full fendered '36 Ford.. It is very true that in days gone by when the 'big & little' (dago) look was popular, some people ran tires as big as 820 on the rear... Of course they hit the fenders.
A 650x16 is about the largest tire that can be safely ran on stock wheels... The 750x16 tires are basically truck tires which are intended for HD truck type wheels.
The '36/39 Ford wide 5 wheels are only 4.5 wide rims, this rim is to narrow for the 750 tires.
Of course if you are only looking for tires to make a car a roller, any tire that will hold air will do..