I believe they put out between 4 and 8 cfm at 100 psi, but it depends on the stroke of the compressor and of course the rpm that you are running it at. Here is a link to an article on how to mount a York: http://www.coloradok5.com/york.shtml

I think it would be easier on the battery to use a 12 volt starter or winch motor to power a compressor than to use a convertor to step the power up to 110v. On my old F350 I had a Oasis 12 volt compressor mounted inside the front bumper. Oasis simply took a York compressor and mated it to a winch. They run around $700, but you could make one yourself for a lot less. Here's a picture: