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BASSr
05-11-2008, 06:27 AM
I was hoping someone here can provide some input to this. I have an '87 Choo Choo SS el Camino that originally came with the LG4 305, Turbo 200 (not 2004R), and 2.41 LSD rear. Thats what the ECM (1228079, chip ACFY) is setup for from the factory. Now I have a 200-4R (CZF) and 3.73 LSD rear that I am planning to drop in but was wondering about the ECM. I have the ECM from the '87 Monte SS and it has chip ACFZ in it. Which one of these chips would I be better off using in the el camino with the 200-4R and 3.73 rear? The factory one that matches the LG4 motor or the one that matches the gears and tranny?

Any suggestions?

Bruce

Keller
05-11-2008, 10:17 AM
Since this is not TR/Buick related, please contact him directly for all followups. Do not post here. :nono: