Not all Cane Corso dogs drool a lot however the Cane Corso dog with the heavy jowls does drool a lot.
However the other Cane Corso dogs with tighter lips do not drool as much as the ones with the heavy jowls.
If you get a Cane Corso with a heavy jowl then you can expect it to drool and even slobber a lot but if you get the Cane Corso with the tighter lips then they won't drool or slobber as much.
The short faced breeds of Cane Corso's also gulp a lot of air when they eat so they tend to have more flatulence as well.