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Registered
Join Date: Oct 2003
Location: London Ont Canada
Posts: 3,120
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Advance the timing 3 to5 degrees. Verify the CO readings are not too rich . Consider a new O2 sensor as they get lazy with age and catalysts get partly plugged. And check for things like dragging brakes and excessive toe in. Dragging brakes is common on cars which are allowed to sit for periods of time.I assume you have no leaks. Lastly remember the SC ,s don,t get nearly as good mileage as the Carrera,s do
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1980 911 SC 3.6 coupe sold
1995 993 coupe
1966 Mustang Shelby clone
1964 Corvair Spyder Turbo gone
2012 Boss 302
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