I'm new to the LSx series of engines and their computers, but for LT1's the only change to use a different MAF was to use the correct MAF table. I was using a f-body LS1 MAF on my 94 Fleetwood with LT1 engine. So it would appear that the only change to use a LS2 MAF with an LS3 engine would be a table change. Anyway that is one of the reasons I went with Speartech, Speartech can give a working configuration for the stock LS3 engine that should run very well the first time the engine is cranked. Of course a dyno tune would probably be in my future but I could put this off while dealing with the many other problems of the restoration.
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