FWIW:
From past "experience", ford3's reply No. 10 will work every time, even with:
1. The (2) Model A rear wheels under water, & bogged down to the rear axle in soft mud; &,
2. With the bottom of the intake on the carburetor one inch above the water line with the engne still running, & with headlights pointed to the tops of the adjacent trees; &,
3. with both front wheels bogged in soft mud & under warer; &,
4. with a "loaded" boat on a boat trailer "attached" to the Model A trailer hitch.
Pulled it out like reply no. 10 with a 1946 Farmall AV tractor & a rope -- no sweat.
Safety first !!!!