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911E1970 /tachometer/m.f.i.

Electrical

Vehicle Information: Model: 911E; Year: 1970; Body Type: Targa; Engine (type, size, modifications): 2.2 M.F.I.; Total Mileage: 72,700;

The tachometer on my 1970 911E does not function properly. The needle on th etach fluctuates over the entire R.P.M. Is there ant way I can test the tach or any other item which could cause this discrepancy? I also have an issue with the M.F.I. System. When I first start up the engine the idle is fine, when the engine starts to warm up the idle also increases and runs rich. What steps should I take to eliminate this occurence? Thank you for your help in this matter.Tim ZuberkaMacungie, PA

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