I've updated the '749 twiki to add a link to Ludis's schematics and a bit more info about driver configurations. http://www.diy-efi.org/twiki/bin/view.pl/Gmecm/1227749 I had an inquiry this morning that caused me to put this together, and it's so easy to add to the tiwki I put it there also. Thanks again Steve! Best, Bill