I have not had a ton of experience with the 95 ECU's but they are similar to the early EEC-IV ecus in how they tune and such. There is no way to add dual maf functionality as far as I know. There is a company called Selin that make a dual MAF translator for the Nissan 300zx crowd. They also use 0-5 v maf sensors so I cant imagine why you couldn't use one of these on your setup. It would require some rewiring but With what you are doing I cant see you having a problem with it.
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