What you have is a Mikuni VM series carb, they come in all sizes from 22 to 44mm. What I mean by size is the bore of the instrument where the air flows through over the jets. So if the INSIDE diameter of the spigot where it sits in the rubber mounting is 32mm you have a VM32, actually not a bad size for a lightly tuned Bullet.
Ignore the number stamped inside the float bowl. Now because these carbs are used on lots of different bikes, some with two-stroke engines, two outwardly identical carbs can be set up very differently, one would make the engine run very nicely, the other wouldn't work at all well.
Fortunately some folks on here are running with VM32s, if you search the forum archives someone will have posted this information - hang on, it's here. Just be careful
NOT to follow the recommendations for a Mikuni TM32, this is a different type of carburetor from the VM32.
https://forum.classicmotorworks.com/index.php?topic=16053.0;allAs for getting the carb to fit the head without fouling the head steady brackets, try a spacer cut from 1/4" Tufnol to move the carb mounting rubber out a bit instead of butchering the brackets. The mounting holes are 60mm centers, 6mm bore, the hole in the middle will need to match the bore of the carb you're using.
A.