OEM bcc repository?

[EvelBist]

I have come into several original GM OBD1 memcals, and I'm going to erase them for my tunes but before I do, is there an online 'repository' for GM originals?

[dave w]

Perhaps this link will be helpful. https://www.gearhead-efi.com/Fuel-Injection/forumdisplay.php?20-GM-ECM-Bins-TunerPro-Definition-Files-Wiring-Diagrams-Tuner-Info!

The files are organized by Computer Part Number / Definition / Mask ID