There is a website for diesels that is very similar to this one in the type of atmosphere and a lot of very knowledgeable folks. The address is
www.thetruckstop.us it has to be .us at the end, most of us are used to doing dot com so just thought I would stress that. I am new here, but I can see you all love to mod your saws. Once I joined a few diesel forums, it started. Take a ride in my truck now!! Earlier this year I had to have the tranny re-built, so of course it got re-built with a Suncoast stage IV kit and a 1056 triple disk billet torque converter.
EFI Live is expanding and may have cummins support in the next year or so. EFI Live is amazing. It's much better than any of the box tuners, because it's not a pre-packaged tune. It is fully customizable. It's software to let you reprogram the ecm to whatever parameters you want. The bad part is that you
could destroy your motor if you go overboard. It's so much more than that with scanning, tuning and logging. Here is a screen shot of just one of the parameters under the fuel pressure section. There are hundreds of tables.