PING Sensor with Maxuino

Hi There Forum,
This is directed towards users that are familiar with Maxuino and the Max 5 enviornment.
What I would like to do is be able to use data from a PING sensor inside max msp.
What doesn't work: trying to use Max to clock the PING sensor. the highest resolution of time is 1 ms which is much too slow.
What doesn't work:
Not using maxuino and just uploading the PING code to Arduino, then using the serial object to output data in Max....

Is there a way to work the PING code into Standard Firmata??
Thanks. I appreciate the help.