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    Wideband AFR tuning help.

    So I am tuning my 340 with a wide band afr and have a couple of questions for you guys that use them. I have two different carbs I have been going back and forth on. A 3310 750 and a 670 Street Avenger. The 3310 has 72's in the primaries and the 670 came with 65's. The 65's are way too small...
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