You don't have a vacuum leak. if you did, your vacuum would be below 9". how many miles are on your engine? Who installed the cam? What kind of timing chain set was used, and how many miles are on it? I think your valve timing may be retarded. When is the last time you did a compression check? What were the numbers wet and dry?
Take care
~Chris
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Retired Moderator
MustangNet
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RACECAR spelled backwards is RACECAR
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