APPLICATION PLATFORM	TIMING RETARD ON STOCK PCM*
LT1 [OBD-II]	6 Degrees
LS1	3 Degrees
LS6 & LS1 GTO	8 Degrees
LS2 & LS3	9 Degrees
LS7	9 Degrees

* The Interface uses the IAT Spark Advance Correction Table in the PCM for retarding timing. The Interface is limited to the values entered into this table, so if you would like to pull more timing then what is available for your application you can do so by modifying the IAT Spark Advance Correction Table.