I'm just beginning this project, so please have patience. I cannot find xdf or adx files in Tunerpro (RT) or anywhere else for a 727 ecm from a "91 corvette TPI mtr. The chip is from a well known "mail order tuner" that I have given up on after 7 tries. I don't think I'll need a bin file, what's on the chip now is close to what I want, but it clearly needs more help.