Copied from the Mustangtek site. What does open emissions mean? Either?
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http://www.mustangtek.com/4300/4300.htmlC8AF-AC
Unconfirmed Application. Information may or may not be complete or accurate68 390 Ford, Thunderbird (w/AT, open emission)
Unconfirmed Application. Information may or may not be complete or accurate68 428 Ford(exc/PC) (w/AT, open emission)
4v
Auto
Ford Service Part Number ID C8AF-9510-AT