Anyone "reflash" engine ecu?

I could likely locate a used eprom in the autowrecker's. Then it would be just a matter of learning to do it.What's the deal? You wipe it out and install your own timing program? I guess that would make sense,as I've seen G.M stuff reprogrammed for mopar's. Must be a place you can download the specific tuning curve you want.

Ya mean like this?
http://www.binderplanet.com/forums/showthread.php?t=47254