You could use the JC10PLUS but do run the risk of overworking the compressor as it is only a 70% duty cycle. To fill the extra 33 gal tank could take up to 15 minutes of continuous running not to mention once you actually start using the air; the JC10PLUS will not be able to keep up and will more than likely overheat. If you want to use your 33 gal tank in line with a smaller unit, you are better off with a 2hp unit, something that will not only put out more air but able to handle filling the larger tank better.�