Thats the problem when you go and get a "Snail Mail-Chip", those are calibrated with general parameters: a bit more timing, some fuel changes, maybe auto tranny mods, fan ..and thats about it.
But it is not a CHIP problem, it is the program that is stored in it.
The best chip is the one you get burned over a dyno session.
Some shops might be able to re-program that chip (Superchips - Hypertech - Diablo), so keep it and check if someone can do it over a dyno.
Rob Hernandez, AFM co-Founder.