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Message: <blockquote data-quote="Vornhagen" data-source="post: 983956" data-attributes="member: 16804">I just finally cured my extremly high idle problem I purchased a IAC from AutoZone and when they pulled it out of the box I thought it looked odd but just figured that maybe the part had been updated because the mounting holes were Identical after about a month of troubleshooting this thing it ended up being a IAC for the earlier Fox Bodies I cleaned my factory original with brake cleaner and some carb spray then Air dryed and bolted it on and it cured my problem, the IAC ended up that it just happened to be in the wrong box thanks AutoZone for almost permently melting my engine down!!Now another problem has surfaced while cruising it seem to just be dropping spark to all the cylinders and then it imediatley comes back and does this randomly and different speeds and different RPM'sIm pulling my hair out on this one.  Any Ideas?? I have recently replaced my TPS (autozone) and my Distributor (Oreilly's) Timing is at 10 degreesAny Help is appreciated</blockquote>