Yes. Its more of a hastle, and you need 4 bottles linked together. You can use T junctions to connects the tubes together. Its way more complcated and it just takes more time, because you will have to go back and keep re-adjusting the carbs, One pair will be adjusted, then when you just the next one, the first two will fall out of sync, so you will have to go back and adjust from teh begining again. Again, its quite possible, just takes more time.
also with 4 I would put a label on each bottle so you dont forget which one goes to which carb.