OK Chris, you sound like the guy I need to talk to. What would cause this vacuum problem...
At idle I have 5" of vacuum. When you rev it to about 2000rpm it goes up to about 10". I have an F303 cam and have buddies with the same cam and they make 15" at idle.
There are no leaks anywhere because we plugged every line but one and checked it on the upper intake and still only got 5". Any ideas?
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