Interesting... Two of the exact same engines, same ECM, same mask, but totally different settings here.

BAMY 454ss based tune - 1991


BAMT 454 R/V 2500 454 tune - 1991


Probably a reason these guys have detonation issues dumping a SA table into a HD tune from a 1/2 ton 454ss tune, that is, along with the massive amount of EGR spark the HD tunes have compared.