I've been looking for a 512 kB flex fuel (L59, 5.3L V8) file that is a DBC (drive by cable throttle body) configuration. There are a couple over on the Tune Depot, but they are both DBW. Does anyone have a *.bin file from a 512kB (LS1) PCM which was a DBC. Flex fuel was an option on both trucks and SUV's. My guess is that a truck file would have been DBC.