Hi, Guys -
Just starting to learn about the fascinating world of GM ECMs ...
Have a 1983 Trans-Am with the 305 Crossfire engine.
ECM ID number is 1226026 and PROM has the following markings on a sticker:
DELCO
ASY
5597
Anyone know what the "PROM mask ID" is for this ECM/PROM ?
many thanks
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