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By SwedKarla - 13 Years Ago
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What is the difference between a ECZ 9425-A or ECZ 9425-B except carburetor foot ?
What year is ECZ 9425-A manufactured?
What year is ECZ 9425-B manufactured?
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By Hollow Head - 13 Years Ago
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http://m571.com/yblock/intake.htm Hakan, here is some info for you... 
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By SwedKarla - 13 Years Ago
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Thanks Seppo, It was a lot of candy to read on this page.
But it is not to read what is the difference between these two intake.
I know that the foot is different. What else makes B better as some assert?
Is B higher and has better flow?
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By charliemccraney - 13 Years Ago
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bigger ports, more flow.
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By Ted - 13 Years Ago
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The ECZ-A 4v intake is 1956 while the ECZ-B 4V intake is 1957 thru 1964. As Charlie mentions, the ECZ-B does have improved air flow over the ’56 intake.
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By SwedKarla - 13 Years Ago
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Thanks for all the replies, it has helped me to see the difference.
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