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at first glance 26* of advance sounds very aggresive for an engine running 12-14psi of boost and designed to run on 93 octane. But since this engine has only 7:1 compression I can see how it would tolerate that much advance. Now the car comes over to the states with all it's power robbing emissions crap, and Porsche knowing damn well some moron is going to pump in some cheap 87 octane fuel and beat the heck out of the car in Arizona in August, it's easy to see why they would add the second vacuum/pressure reference to the dizzy which pulls some timing under boost. My mechanic told me to yank the vacuum hoses off and lock the dizzy at 25* the day i bought the car because he knew i would only run good fuel.
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