Here are some papers/documents/stuff written by list members and others:

Second spark table in a 1227727 ECM

From Bruce Plecan

Papers by Robert Rauscher

1227747 used for spark only. Companion bin file
1227747 Idle/IAC functionality
1227747 PID control loop for fueling. (Original version)
1227747 Lag filters used in GM ECMs.
GM TCC strategy

Some documents from ECMguy's terrific WWW page